{"id":7684,"date":"2022-03-29T07:09:01","date_gmt":"2022-03-29T07:09:01","guid":{"rendered":"https:\/\/www.jose-aguilar.com\/blog\/?p=7684"},"modified":"2022-03-29T07:09:01","modified_gmt":"2022-03-29T07:09:01","slug":"selectores-disponibles-en-css","status":"publish","type":"post","link":"https:\/\/www.jose-aguilar.com\/blog\/selectores-disponibles-en-css\/","title":{"rendered":"Selectores disponibles en CSS"},"content":{"rendered":"<p>Los selectores son b\u00e1sicos pero imprescindibles si quieres dominar las hojas de estilos <strong>CSS<\/strong> para darle formato a tus p\u00e1ginas.<\/p>\n<p>El caso es que sin estos conocimientos no vas a poder aplicar reglas de estilos a los elementos de tu p\u00e1gina Web.<\/p>\n<p>En este articulo vas a aprender a utilizar los diferentes selectores que se pueden usar en tus hojas de estilo <strong>CSS<\/strong>.<\/p>\n<p>No te lo pierdas porque te lo voy a explicar con muchos detalles para que puedas dominarlo al 100%.<\/p>\n<h2>Tipos de selectores<\/h2>\n<p>Existen diversos tipos de selectores <strong>CSS<\/strong> para poder darle propiedades a los elementos que componen una p\u00e1gina web.<\/p>\n<p>A continuaci\u00f3n, vas a poder verlos todos detalladamente y con ejemplos para que no se te escape nada.<\/p>\n<h3>Selector universal<\/h3>\n<p>El selector universal permite seleccionar todos los elementos del documento <strong>HTML<\/strong> para aplicarle los estilos que tu quieras.<\/p>\n<p>Este selector es muy \u00fatil para aplicar unos estilos generales a tu p\u00e1gina web.<\/p>\n<p>Yo suelo usarlo al principio del documento como primera regla general.<\/p>\n<p>Por ejemplo, puedes utilizar el selector universal para aplicar una fuente a todo tu documento y\/o tambi\u00e9n suele utilizarse mucho para restablecer o eliminar los m\u00e1rgenes exteriores e interiores de los elementos.<\/p>\n<p>El selector universal se aplica usando el s\u00edmbolo asterisco de la siguiente forma:<\/p>\n<div id=\"wpshdo_1\" class=\"wp-synhighlighter-outer\"><div id=\"wpshdt_1\" class=\"wp-synhighlighter-expanded\"><table border=\"0\" width=\"100%\"><tr><td align=\"left\" width=\"80%\"><a name=\"#codesyntax_1\"><\/a><a id=\"wpshat_1\" class=\"wp-synhighlighter-title\" href=\"#codesyntax_1\"  onClick=\"javascript:wpsh_toggleBlock(1)\" title=\"Click to show\/hide code block\">Source code<\/a><\/td><td align=\"right\"><a href=\"#codesyntax_1\" onClick=\"javascript:wpsh_code(1)\" title=\"Show code only\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/code.png\" \/><\/a>&nbsp;<a href=\"#codesyntax_1\" onClick=\"javascript:wpsh_print(1)\" title=\"Print code\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/printer.png\" \/><\/a>&nbsp;<a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/About.html\" target=\"_blank\" title=\"Show plugin information\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/info.gif\" \/><\/a>&nbsp;<\/td><\/tr><\/table><\/div><div id=\"wpshdi_1\" class=\"wp-synhighlighter-inner\" style=\"display: block;\"><pre class=\"css\" style=\"font-family:monospace;\"><span class=\"sy0\">*<\/span> <span class=\"br0\">&#123;<\/span>\n    <span class=\"kw1\">font-family<\/span><span class=\"sy0\">:<\/span> Arial<span class=\"sy0\">,<\/span> Helvetica<span class=\"sy0\">,<\/span> <span class=\"kw2\">sans-serif<\/span><span class=\"sy0\">;<\/span>\n    <span class=\"kw1\">margin<\/span><span class=\"sy0\">:<\/span> <span class=\"re3\">0px<\/span><span class=\"sy0\">;<\/span>\n    <span class=\"kw1\">padding<\/span><span class=\"sy0\">:<\/span> <span class=\"re3\">0px<\/span><span class=\"sy0\">;<\/span>\n<span class=\"br0\">&#125;<\/span><\/pre><\/div><\/div>\n<p>El selector universal tambi\u00e9n se puede aplicar a una parte del documento <strong>HTML<\/strong>. Por ejemplo si queremos darle un formato particular a todos los elementos que componen un formulario, puedes hacer lo siguiente:<\/p>\n<div id=\"wpshdo_2\" class=\"wp-synhighlighter-outer\"><div id=\"wpshdt_2\" class=\"wp-synhighlighter-expanded\"><table border=\"0\" width=\"100%\"><tr><td align=\"left\" width=\"80%\"><a name=\"#codesyntax_2\"><\/a><a id=\"wpshat_2\" class=\"wp-synhighlighter-title\" href=\"#codesyntax_2\"  onClick=\"javascript:wpsh_toggleBlock(2)\" title=\"Click to show\/hide code block\">Source code<\/a><\/td><td align=\"right\"><a href=\"#codesyntax_2\" onClick=\"javascript:wpsh_code(2)\" title=\"Show code only\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/code.png\" \/><\/a>&nbsp;<a href=\"#codesyntax_2\" onClick=\"javascript:wpsh_print(2)\" title=\"Print code\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/printer.png\" \/><\/a>&nbsp;<a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/About.html\" target=\"_blank\" title=\"Show plugin information\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/info.gif\" \/><\/a>&nbsp;<\/td><\/tr><\/table><\/div><div id=\"wpshdi_2\" class=\"wp-synhighlighter-inner\" style=\"display: block;\"><pre class=\"css\" style=\"font-family:monospace;\">form <span class=\"sy0\">*<\/span> <span class=\"br0\">&#123;<\/span>\n    <span class=\"kw1\">display<\/span><span class=\"sy0\">:<\/span> <span class=\"kw2\">block<\/span><span class=\"sy0\">;<\/span>\n<span class=\"br0\">&#125;<\/span><\/pre><\/div><\/div>\n<p>En este caso, estoy indicando que quiero que todos los elementos del formulario se comporten como bloques para que ocupen el 100% de la p\u00e1gina.<\/p>\n<h3>Selector de etiqueta<\/h3>\n<p>Un selector de etiqueta te va a permitir seleccionar cualquier elemento de tu documento <strong>HTML<\/strong> para darle los estilos que quieras.<\/p>\n<p>Cuando hago referencia a la palabra \u00abetiqueta\u00bb, hago referencia a las etiquetas <strong>HTML<\/strong> como tal.<\/p>\n<p>El caso es que tu puedes seleccionar cualquier elemento mediante su etiqueta para darle estilos personalizados.<\/p>\n<p>Por ejemplo, podemos darle estilos a la etiqueta &lt;h1&gt; que usar\u00e9 en mi p\u00e1gina web para establecer un t\u00edtulo.<\/p>\n<p>En tu hoja de estilos <strong>CSS<\/strong> puedes darle estilos personalizados a todas las etiquetas &lt;h1&gt; de la siguiente forma:<\/p>\n<div id=\"wpshdo_3\" class=\"wp-synhighlighter-outer\"><div id=\"wpshdt_3\" class=\"wp-synhighlighter-expanded\"><table border=\"0\" width=\"100%\"><tr><td align=\"left\" width=\"80%\"><a name=\"#codesyntax_3\"><\/a><a id=\"wpshat_3\" class=\"wp-synhighlighter-title\" href=\"#codesyntax_3\"  onClick=\"javascript:wpsh_toggleBlock(3)\" title=\"Click to show\/hide code block\">Source code<\/a><\/td><td align=\"right\"><a href=\"#codesyntax_3\" onClick=\"javascript:wpsh_code(3)\" title=\"Show code only\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/code.png\" \/><\/a>&nbsp;<a href=\"#codesyntax_3\" onClick=\"javascript:wpsh_print(3)\" title=\"Print code\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/printer.png\" \/><\/a>&nbsp;<a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/About.html\" target=\"_blank\" title=\"Show plugin information\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/info.gif\" \/><\/a>&nbsp;<\/td><\/tr><\/table><\/div><div id=\"wpshdi_3\" class=\"wp-synhighlighter-inner\" style=\"display: block;\"><pre class=\"css\" style=\"font-family:monospace;\">h1 <span class=\"br0\">&#123;<\/span>\n    <span class=\"kw1\">color<\/span><span class=\"sy0\">:<\/span> <span class=\"re0\">#171717<\/span><span class=\"sy0\">;<\/span>\n    <span class=\"kw1\">font-size<\/span><span class=\"sy0\">:<\/span> <span class=\"re3\">48px<\/span><span class=\"sy0\">;<\/span> \n<span class=\"br0\">&#125;<\/span><\/pre><\/div><\/div>\n<p>De la misma forma, podr\u00edas darle estilos a todas las etiquetas <strong>HTML<\/strong> existentes: p\u00e1rrafos \u00ab&lt;p&gt;\u00bb, listas \u00ab&lt;ul&gt;\u00bb, contenedores \u00ab&lt;div&gt;\u00bb, etc.<\/p>\n<p>En este punto tambi\u00e9n me gustar\u00eda hacerte saber que en <strong>CSS<\/strong> puedes usar una selecci\u00f3n compuesta de elementos.<\/p>\n<p>Por ejemplo, para darle estilos a los enlaces del pie de p\u00e1gina o &lt;footer&gt;:<\/p>\n<div id=\"wpshdo_4\" class=\"wp-synhighlighter-outer\"><div id=\"wpshdt_4\" class=\"wp-synhighlighter-expanded\"><table border=\"0\" width=\"100%\"><tr><td align=\"left\" width=\"80%\"><a name=\"#codesyntax_4\"><\/a><a id=\"wpshat_4\" class=\"wp-synhighlighter-title\" href=\"#codesyntax_4\"  onClick=\"javascript:wpsh_toggleBlock(4)\" title=\"Click to show\/hide code block\">Source code<\/a><\/td><td align=\"right\"><a href=\"#codesyntax_4\" onClick=\"javascript:wpsh_code(4)\" title=\"Show code only\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/code.png\" \/><\/a>&nbsp;<a href=\"#codesyntax_4\" onClick=\"javascript:wpsh_print(4)\" title=\"Print code\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/printer.png\" \/><\/a>&nbsp;<a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/About.html\" target=\"_blank\" title=\"Show plugin information\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/info.gif\" \/><\/a>&nbsp;<\/td><\/tr><\/table><\/div><div id=\"wpshdi_4\" class=\"wp-synhighlighter-inner\" style=\"display: block;\"><pre class=\"css\" style=\"font-family:monospace;\">footer a <span class=\"br0\">&#123;<\/span>\n    <span class=\"kw1\">color<\/span><span class=\"sy0\">:<\/span> <span class=\"kw2\">white<\/span><span class=\"sy0\">;<\/span>\n    <span class=\"kw1\">text-decoration<\/span><span class=\"sy0\">:<\/span> <span class=\"kw2\">none<\/span><span class=\"sy0\">;<\/span>\n<span class=\"br0\">&#125;<\/span><\/pre><\/div><\/div>\n<p>De esta forma, indicamos que los enlaces del pie de p\u00e1gina ser\u00e1n de color blanco y sin decoraci\u00f3n.<\/p>\n<p>Esto \u00faltimo va a funcionar siempre y cuando tengas elementos &lt;a&gt; dentro de tu etiqueta &lt;footer&gt;.<\/p>\n<h3>Selector de ID<\/h3>\n<p>A todos los elementos <strong>HTML<\/strong> se le puede establecer o indicar un identificador (que lo ideal es que sea \u00fanico en la p\u00e1gina).<\/p>\n<p>Este tipo de selector se puede usar para aplicar estilos \u00fanicos a un elemento sabiendo que en la p\u00e1gina hay m\u00e1s elementos como \u00e9l que pueden tener otro aspecto diferente.<\/p>\n<p>Siguiendo con el ejemplo de los enlaces.<\/p>\n<p>Imag\u00ednate que en tu p\u00e1gina web hay un bot\u00f3n tipo enlace que quieres destacar para que visualmente se vea como importante.<\/p>\n<p>Todos los enlaces de tu p\u00e1gina pueden tener el estilo b\u00e1sico que hemos definido en la secci\u00f3n \u00abSelector de etiqueta\u00bb pero ahora a este bot\u00f3n le quieres dar unos estilos bastante personalizados.<\/p>\n<p>En el <strong>HTML<\/strong> puedes establecerle un identificador de la siguiente forma:<\/p>\n<div id=\"wpshdo_5\" class=\"wp-synhighlighter-outer\"><div id=\"wpshdt_5\" class=\"wp-synhighlighter-expanded\"><table border=\"0\" width=\"100%\"><tr><td align=\"left\" width=\"80%\"><a name=\"#codesyntax_5\"><\/a><a id=\"wpshat_5\" class=\"wp-synhighlighter-title\" href=\"#codesyntax_5\"  onClick=\"javascript:wpsh_toggleBlock(5)\" title=\"Click to show\/hide code block\">Source code<\/a><\/td><td align=\"right\"><a href=\"#codesyntax_5\" onClick=\"javascript:wpsh_code(5)\" title=\"Show code only\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/code.png\" \/><\/a>&nbsp;<a href=\"#codesyntax_5\" onClick=\"javascript:wpsh_print(5)\" title=\"Print code\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/printer.png\" \/><\/a>&nbsp;<a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/About.html\" target=\"_blank\" title=\"Show plugin information\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/info.gif\" \/><\/a>&nbsp;<\/td><\/tr><\/table><\/div><div id=\"wpshdi_5\" class=\"wp-synhighlighter-inner\" style=\"display: block;\"><pre class=\"html4strict\" style=\"font-family:monospace;\"><span class=\"sc2\">&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a> <span class=\"kw3\">href<\/span><span class=\"sy0\">=<\/span><span class=\"st0\">&quot;https:\/\/www.jose-aguilar.com\/&quot;<\/span> <span class=\"kw3\">id<\/span><span class=\"sy0\">=<\/span><span class=\"st0\">&quot;mybutton&quot;<\/span>&gt;<\/span>Visitar sitio web<span class=\"sc2\">&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a>&gt;<\/span><\/pre><\/div><\/div>\n<p>En tu hoja de estilos <strong>CSS<\/strong> puedes aplicarle estilos a este enlace mediante el identificador usando la almoadilla \u00ab#\u00bb:<\/p>\n<div id=\"wpshdo_6\" class=\"wp-synhighlighter-outer\"><div id=\"wpshdt_6\" class=\"wp-synhighlighter-expanded\"><table border=\"0\" width=\"100%\"><tr><td align=\"left\" width=\"80%\"><a name=\"#codesyntax_6\"><\/a><a id=\"wpshat_6\" class=\"wp-synhighlighter-title\" href=\"#codesyntax_6\"  onClick=\"javascript:wpsh_toggleBlock(6)\" title=\"Click to show\/hide code block\">Source code<\/a><\/td><td align=\"right\"><a href=\"#codesyntax_6\" onClick=\"javascript:wpsh_code(6)\" title=\"Show code only\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/code.png\" \/><\/a>&nbsp;<a href=\"#codesyntax_6\" onClick=\"javascript:wpsh_print(6)\" title=\"Print code\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/printer.png\" \/><\/a>&nbsp;<a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/About.html\" target=\"_blank\" title=\"Show plugin information\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/info.gif\" \/><\/a>&nbsp;<\/td><\/tr><\/table><\/div><div id=\"wpshdi_6\" class=\"wp-synhighlighter-inner\" style=\"display: block;\"><pre class=\"css\" style=\"font-family:monospace;\"><span class=\"re0\">#mybutton<\/span> <span class=\"br0\">&#123;<\/span>\n    <span class=\"kw1\">padding<\/span><span class=\"sy0\">:<\/span> <span class=\"re3\">10px<\/span> <span class=\"re3\">15px<\/span><span class=\"sy0\">;<\/span>\n    <span class=\"kw1\">background-color<\/span><span class=\"sy0\">:<\/span> <span class=\"kw1\">blue<\/span><span class=\"sy0\">;<\/span>\n    <span class=\"kw1\">color<\/span><span class=\"sy0\">:<\/span> <span class=\"kw2\">white<\/span><span class=\"sy0\">;<\/span>\n<span class=\"br0\">&#125;<\/span><\/pre><\/div><\/div>\n<p>De esta forma, conseguimos que este enlace personalizado sea diferente y m\u00e1s destacado al resto ya que tendr\u00eda un aspecto como el siguiente:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-7685\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2022\/03\/boton-personalizado.png\" alt=\"\" width=\"153\" height=\"51\" srcset=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2022\/03\/boton-personalizado.png 153w, https:\/\/www.jose-aguilar.com\/blog\/wp-content\/uploads\/2022\/03\/boton-personalizado-150x51.png 150w\" sizes=\"auto, (max-width: 153px) 100vw, 153px\" \/><\/p>\n<h3>Selector de clase<\/h3>\n<p>Los selectores de clase son muy parecido a los selectores de ID pero en este caso se suele utilizar para m\u00faltiples elementos de la p\u00e1gina.<\/p>\n<p>En el <strong>HTML<\/strong> puedes agregar una clase a un elemento de la siguiente forma:<\/p>\n<div id=\"wpshdo_7\" class=\"wp-synhighlighter-outer\"><div id=\"wpshdt_7\" class=\"wp-synhighlighter-expanded\"><table border=\"0\" width=\"100%\"><tr><td align=\"left\" width=\"80%\"><a name=\"#codesyntax_7\"><\/a><a id=\"wpshat_7\" class=\"wp-synhighlighter-title\" href=\"#codesyntax_7\"  onClick=\"javascript:wpsh_toggleBlock(7)\" title=\"Click to show\/hide code block\">Source code<\/a><\/td><td align=\"right\"><a href=\"#codesyntax_7\" onClick=\"javascript:wpsh_code(7)\" title=\"Show code only\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/code.png\" \/><\/a>&nbsp;<a href=\"#codesyntax_7\" onClick=\"javascript:wpsh_print(7)\" title=\"Print code\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/printer.png\" \/><\/a>&nbsp;<a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/About.html\" target=\"_blank\" title=\"Show plugin information\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/info.gif\" \/><\/a>&nbsp;<\/td><\/tr><\/table><\/div><div id=\"wpshdi_7\" class=\"wp-synhighlighter-inner\" style=\"display: block;\"><pre class=\"html4strict\" style=\"font-family:monospace;\"><span class=\"sc2\">&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a> <span class=\"kw3\">href<\/span><span class=\"sy0\">=<\/span><span class=\"st0\">&quot;https:\/\/www.jose-aguilar.com\/&quot;<\/span> <span class=\"kw3\">class<\/span><span class=\"sy0\">=<\/span><span class=\"st0\">&quot;mybutton&quot;<\/span>&gt;<\/span>Visitar sitio web<span class=\"sc2\">&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a>&gt;<\/span><\/pre><\/div><\/div>\n<p>En tu hoja de estilos <strong>CSS<\/strong> puedes aplicarle estilos a este enlace mediante el identificador usando el punto \u00ab.\u00bb:<\/p>\n<div id=\"wpshdo_8\" class=\"wp-synhighlighter-outer\"><div id=\"wpshdt_8\" class=\"wp-synhighlighter-expanded\"><table border=\"0\" width=\"100%\"><tr><td align=\"left\" width=\"80%\"><a name=\"#codesyntax_8\"><\/a><a id=\"wpshat_8\" class=\"wp-synhighlighter-title\" href=\"#codesyntax_8\"  onClick=\"javascript:wpsh_toggleBlock(8)\" title=\"Click to show\/hide code block\">Source code<\/a><\/td><td align=\"right\"><a href=\"#codesyntax_8\" onClick=\"javascript:wpsh_code(8)\" title=\"Show code only\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/code.png\" \/><\/a>&nbsp;<a href=\"#codesyntax_8\" onClick=\"javascript:wpsh_print(8)\" title=\"Print code\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/printer.png\" \/><\/a>&nbsp;<a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/About.html\" target=\"_blank\" title=\"Show plugin information\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/info.gif\" \/><\/a>&nbsp;<\/td><\/tr><\/table><\/div><div id=\"wpshdi_8\" class=\"wp-synhighlighter-inner\" style=\"display: block;\"><pre class=\"css\" style=\"font-family:monospace;\"><span class=\"re1\">.mybutton<\/span> <span class=\"br0\">&#123;<\/span>\n    <span class=\"kw1\">padding<\/span><span class=\"sy0\">:<\/span> <span class=\"re3\">10px<\/span> <span class=\"re3\">15px<\/span><span class=\"sy0\">;<\/span>\n    <span class=\"kw1\">background-color<\/span><span class=\"sy0\">:<\/span> <span class=\"kw1\">blue<\/span><span class=\"sy0\">;<\/span>\n    <span class=\"kw1\">color<\/span><span class=\"sy0\">:<\/span> <span class=\"kw2\">white<\/span><span class=\"sy0\">;<\/span>\n<span class=\"br0\">&#125;<\/span><\/pre><\/div><\/div>\n<p>A partir de ahora, esta clase se la puedes poner a m\u00faltiples elementos de tu documento <strong>HTML<\/strong> para que se les aplique los mismos estilos a todos ellos.<\/p>\n<p>Importante: Los identificadores se suelen utilizar para un elemento y las clases para m\u00faltiples elementos.<\/p>\n<h3>Selector de atributo<\/h3>\n<p>Los selectores de atributo te van a permitir seleccionar elementos del <strong>HTML<\/strong> en base a un atributo que tengan asignado.<\/p>\n<p>Este tipo de selector suelo utilizarlo mucho con los formularios.<\/p>\n<p>Por ejemplo, para darle un estilo a todos los campos de texto de tipo \u00abinput\u00bb, puedes hacer algo como lo siguiente:<\/p>\n<div id=\"wpshdo_9\" class=\"wp-synhighlighter-outer\"><div id=\"wpshdt_9\" class=\"wp-synhighlighter-expanded\"><table border=\"0\" width=\"100%\"><tr><td align=\"left\" width=\"80%\"><a name=\"#codesyntax_9\"><\/a><a id=\"wpshat_9\" class=\"wp-synhighlighter-title\" href=\"#codesyntax_9\"  onClick=\"javascript:wpsh_toggleBlock(9)\" title=\"Click to show\/hide code block\">Source code<\/a><\/td><td align=\"right\"><a href=\"#codesyntax_9\" onClick=\"javascript:wpsh_code(9)\" title=\"Show code only\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/code.png\" \/><\/a>&nbsp;<a href=\"#codesyntax_9\" onClick=\"javascript:wpsh_print(9)\" title=\"Print code\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/printer.png\" \/><\/a>&nbsp;<a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/About.html\" target=\"_blank\" title=\"Show plugin information\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/info.gif\" \/><\/a>&nbsp;<\/td><\/tr><\/table><\/div><div id=\"wpshdi_9\" class=\"wp-synhighlighter-inner\" style=\"display: block;\"><pre class=\"css\" style=\"font-family:monospace;\">input<span class=\"br0\">[<\/span>type<span class=\"sy0\">=<\/span><span class=\"st0\">&quot;text&quot;<\/span><span class=\"br0\">]<\/span> <span class=\"br0\">&#123;<\/span>\n    <span class=\"kw1\">width<\/span><span class=\"sy0\">:<\/span> <span class=\"re3\">200px<\/span><span class=\"sy0\">;<\/span>\n    <span class=\"kw1\">padding<\/span><span class=\"sy0\">:<\/span> <span class=\"re3\">10px<\/span><span class=\"sy0\">;<\/span>\n<span class=\"br0\">&#125;<\/span><\/pre><\/div><\/div>\n<p>En este caso, a todos los inputs de tipo texto se le aplicar\u00e1 este ancho de 200px y un espaciado interior de 10px.<\/p>\n<h3>Selector de elementos hijos<\/h3>\n<p>El ejemplo m\u00e1s claro para aplicar los selectores hijos es usando un elemnto tipo lista &lt;ul&gt; y &lt;li&gt;.<\/p>\n<p>Puedes armar un men\u00fa anidado usando una lista desordenada:<\/p>\n<div id=\"wpshdo_10\" class=\"wp-synhighlighter-outer\"><div id=\"wpshdt_10\" class=\"wp-synhighlighter-expanded\"><table border=\"0\" width=\"100%\"><tr><td align=\"left\" width=\"80%\"><a name=\"#codesyntax_10\"><\/a><a id=\"wpshat_10\" class=\"wp-synhighlighter-title\" href=\"#codesyntax_10\"  onClick=\"javascript:wpsh_toggleBlock(10)\" title=\"Click to show\/hide code block\">Source code<\/a><\/td><td align=\"right\"><a href=\"#codesyntax_10\" onClick=\"javascript:wpsh_code(10)\" title=\"Show code only\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/code.png\" \/><\/a>&nbsp;<a href=\"#codesyntax_10\" onClick=\"javascript:wpsh_print(10)\" title=\"Print code\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/printer.png\" \/><\/a>&nbsp;<a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/About.html\" target=\"_blank\" title=\"Show plugin information\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/info.gif\" \/><\/a>&nbsp;<\/td><\/tr><\/table><\/div><div id=\"wpshdi_10\" class=\"wp-synhighlighter-inner\" style=\"display: block;\"><pre class=\"html4strict\" style=\"font-family:monospace;\"><span class=\"sc2\">&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/ul.html\"><span class=\"kw2\">ul<\/span><\/a>&gt;<\/span>\n    <span class=\"sc2\">&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/li.html\"><span class=\"kw2\">li<\/span><\/a>&gt;<\/span>\n        <span class=\"sc2\">&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a> <span class=\"kw3\">href<\/span><span class=\"sy0\">=<\/span><span class=\"st0\">&quot;#&quot;<\/span>&gt;<\/span>Elemento 1<span class=\"sc2\">&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a>&gt;<\/span>\n        <span class=\"sc2\">&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/ul.html\"><span class=\"kw2\">ul<\/span><\/a>&gt;<\/span>\n            <span class=\"sc2\">&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/li.html\"><span class=\"kw2\">li<\/span><\/a>&gt;&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a> <span class=\"kw3\">href<\/span><span class=\"sy0\">=<\/span><span class=\"st0\">&quot;#&quot;<\/span>&gt;<\/span>Elemento hijo 1<span class=\"sc2\">&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a>&gt;&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/li.html\"><span class=\"kw2\">li<\/span><\/a>&gt;<\/span>\n            <span class=\"sc2\">&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/li.html\"><span class=\"kw2\">li<\/span><\/a>&gt;&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a> <span class=\"kw3\">href<\/span><span class=\"sy0\">=<\/span><span class=\"st0\">&quot;#&quot;<\/span>&gt;<\/span>Elemento hijo 2<span class=\"sc2\">&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a>&gt;&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/li.html\"><span class=\"kw2\">li<\/span><\/a>&gt;<\/span>\n            <span class=\"sc2\">&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/li.html\"><span class=\"kw2\">li<\/span><\/a>&gt;&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a> <span class=\"kw3\">href<\/span><span class=\"sy0\">=<\/span><span class=\"st0\">&quot;#&quot;<\/span>&gt;<\/span>Elemento hijo 3<span class=\"sc2\">&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a>&gt;&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/li.html\"><span class=\"kw2\">li<\/span><\/a>&gt;<\/span>\n        <span class=\"sc2\">&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/ul.html\"><span class=\"kw2\">ul<\/span><\/a>&gt;<\/span>\n    <span class=\"sc2\">&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/li.html\"><span class=\"kw2\">li<\/span><\/a>&gt;<\/span>\n    <span class=\"sc2\">&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/li.html\"><span class=\"kw2\">li<\/span><\/a>&gt;&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a> <span class=\"kw3\">href<\/span><span class=\"sy0\">=<\/span><span class=\"st0\">&quot;#&quot;<\/span>&gt;<\/span>Elemento 2<span class=\"sc2\">&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a>&gt;&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/li.html\"><span class=\"kw2\">li<\/span><\/a>&gt;<\/span>\n    <span class=\"sc2\">&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/li.html\"><span class=\"kw2\">li<\/span><\/a>&gt;&lt;<a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a> <span class=\"kw3\">href<\/span><span class=\"sy0\">=<\/span><span class=\"st0\">&quot;#&quot;<\/span>&gt;<\/span>Elemento 3<span class=\"sc2\">&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/a.html\"><span class=\"kw2\">a<\/span><\/a>&gt;&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/li.html\"><span class=\"kw2\">li<\/span><\/a>&gt;<\/span>\n<span class=\"sc2\">&lt;<span class=\"sy0\">\/<\/span><a href=\"http:\/\/december.com\/html\/4\/element\/ul.html\"><span class=\"kw2\">ul<\/span><\/a>&gt;<\/span><\/pre><\/div><\/div>\n<p>Para seleccionar elementos de este men\u00fa, tenemos que tener bien claro que se trata de un \u00e1rbol donde el &lt;ul&gt; es el padre y cada elemento que se va anidando dentro son los hijos.<\/p>\n<p>Para acceder a los hijo puedes usar el s\u00edmbolo \u00ab&gt;\u00bb.<\/p>\n<p>Por ejemplo, si quieres darle estilos a los enlaces del men\u00fa de primer nivel, puedes hacer lo siguiente:<\/p>\n<div id=\"wpshdo_11\" class=\"wp-synhighlighter-outer\"><div id=\"wpshdt_11\" class=\"wp-synhighlighter-expanded\"><table border=\"0\" width=\"100%\"><tr><td align=\"left\" width=\"80%\"><a name=\"#codesyntax_11\"><\/a><a id=\"wpshat_11\" class=\"wp-synhighlighter-title\" href=\"#codesyntax_11\"  onClick=\"javascript:wpsh_toggleBlock(11)\" title=\"Click to show\/hide code block\">Source code<\/a><\/td><td align=\"right\"><a href=\"#codesyntax_11\" onClick=\"javascript:wpsh_code(11)\" title=\"Show code only\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/code.png\" \/><\/a>&nbsp;<a href=\"#codesyntax_11\" onClick=\"javascript:wpsh_print(11)\" title=\"Print code\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/printer.png\" \/><\/a>&nbsp;<a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/About.html\" target=\"_blank\" title=\"Show plugin information\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/info.gif\" \/><\/a>&nbsp;<\/td><\/tr><\/table><\/div><div id=\"wpshdi_11\" class=\"wp-synhighlighter-inner\" style=\"display: block;\"><pre class=\"css\" style=\"font-family:monospace;\"><span class=\"re0\">#menu<\/span> <span class=\"sy0\">&gt;<\/span> li <span class=\"sy0\">&gt;<\/span> a <span class=\"br0\">&#123;<\/span>\n    <span class=\"kw1\">color<\/span><span class=\"sy0\">:<\/span> <span class=\"kw2\">red<\/span><span class=\"sy0\">;<\/span>\n<span class=\"br0\">&#125;<\/span><\/pre><\/div><\/div>\n<h3>Conclusi\u00f3n<\/h3>\n<p>Aplicando todos estos selectores, teniendo los conocimientos b\u00e1sicos de <strong>CSS<\/strong> y teniendo una buena imaginaci\u00f3n, puedes llegar a crear dise\u00f1os fabulosos.<\/p>\n<p>Es importante saber que las hojas de estilos se leen de arriba abajo.<\/p>\n<p>Esto significa que la prioridad de las reglas es m\u00e1s importante la \u00faltima que hayas establecido a no ser que utilices la propiedad !important para indicar que esa regla es la m\u00e1s importante.<\/p>\n<div id=\"wpshdo_12\" class=\"wp-synhighlighter-outer\"><div id=\"wpshdt_12\" class=\"wp-synhighlighter-expanded\"><table border=\"0\" width=\"100%\"><tr><td align=\"left\" width=\"80%\"><a name=\"#codesyntax_12\"><\/a><a id=\"wpshat_12\" class=\"wp-synhighlighter-title\" href=\"#codesyntax_12\"  onClick=\"javascript:wpsh_toggleBlock(12)\" title=\"Click to show\/hide code block\">Source code<\/a><\/td><td align=\"right\"><a href=\"#codesyntax_12\" onClick=\"javascript:wpsh_code(12)\" title=\"Show code only\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/code.png\" \/><\/a>&nbsp;<a href=\"#codesyntax_12\" onClick=\"javascript:wpsh_print(12)\" title=\"Print code\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/printer.png\" \/><\/a>&nbsp;<a href=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/About.html\" target=\"_blank\" title=\"Show plugin information\"><img decoding=\"async\" border=\"0\" style=\"border: 0 none\" src=\"https:\/\/www.jose-aguilar.com\/blog\/wp-content\/plugins\/wp-synhighlight\/themes\/default\/images\/info.gif\" \/><\/a>&nbsp;<\/td><\/tr><\/table><\/div><div id=\"wpshdi_12\" class=\"wp-synhighlighter-inner\" style=\"display: block;\"><pre class=\"css\" style=\"font-family:monospace;\">a <span class=\"br0\">&#123;<\/span>\n    <span class=\"kw1\">color<\/span><span class=\"sy0\">:<\/span> <span class=\"kw2\">red<\/span> !important<span class=\"sy0\">;<\/span>\n<span class=\"br0\">&#125;<\/span><\/pre><\/div><\/div>\n<p>En <strong>CSS<\/strong> tambi\u00e9n es importante saber que cuanto m\u00e1s especifiques un selector, m\u00e1s importancia tendr\u00e1.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Los selectores son b\u00e1sicos pero imprescindibles si quieres dominar las hojas de estilos CSS para darle formato a tus p\u00e1ginas. El caso es que sin estos conocimientos no vas a poder aplicar reglas de estilos a los elementos de tu p\u00e1gina Web. En este articulo vas a aprender a utilizar los diferentes selectores que se [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7687,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[78,84,79],"class_list":["post-7684","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-css","tag-botones","tag-formularios","tag-inputs"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Selectores disponibles en CSS - Jose Aguilar Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Selectores disponibles en CSS - Jose Aguilar Blog\" \/>\n<meta property=\"og:description\" content=\"Los selectores son b\u00e1sicos pero imprescindibles si quieres dominar las hojas de estilos CSS para darle formato a tus p\u00e1ginas. El caso es que sin estos conocimientos no vas a poder aplicar reglas de estilos a los elementos de tu p\u00e1gina Web. 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