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I know that the :before, and :after pseudo elements are not supported in empty elements, but what about these:
<select><option><textarea><button>A list would be nice! Thanks guys!
685
The CSS ::before selector inserts content before a selected element. CSS :after inserts content after a specified element. These selectors are commonly used to add text before or after a paragraph or a link.
A CSS pseudo-element is a keyword added to a selector that lets you style a specific part of the selected element(s). For example, ::first-line can be used to change the font of the first line of a paragraph.
In CSS, ::after creates a pseudo-element that is the last child of the selected element. It is often used to add cosmetic content to an element with the content property. It is inline by default.
There are currently seven pseudo-elements in CSS.
I put together a list of every HTML element. Some aren't even legal where they're used... but it still seems to work.
If it says "it works" in green letters, that element is supported.
*:not(br):after {
content: 'it works';
font-weight: bold;
padding: 5px;
color: green;
}<a>Name: a</a> <br />
<abbr>Name: abbr</abbr> <br />
<address>Name: address</address> <br />
<area>Name: area</area> <br />
<article>Name: article</article> <br />
<aside>Name: aside</aside> <br />
<audio>Name: audio</audio> <br />
<b>Name: b</b> <br />
<base>Name: base</base> <br />
<bdo>Name: bdo</bdo> <br />
<blockquote>Name: blockquote</blockquote> <br />
<body>Name: body</body> <br />
<br>Name: br</br> <br />
<button>Name: button</button> <br />
<canvas>Name: canvas</canvas> <br />
<caption>Name: caption</caption> <br />
<cite>Name: cite</cite> <br />
<code>Name: code</code> <br />
<col>Name: col</col> <br />
<colgroup>Name: colgroup</colgroup> <br />
<command>Name: command</command> <br />
<datalist>Name: datalist</datalist> <br />
<dd>Name: dd</dd> <br />
<del>Name: del</del> <br />
<details>Name: details</details> <br />
<dfn>Name: dfn</dfn> <br />
<div>Name: div</div> <br />
<dl>Name: dl</dl> <br />
<dt>Name: dt</dt> <br />
<em>Name: em</em> <br />
<embed>Name: embed</embed> <br />
<eventsource>Name: eventsource</eventsource> <br />
<fieldset>Name: fieldset</fieldset> <br />
<figcaption>Name: figcaption</figcaption> <br />
<figure>Name: figure</figure> <br />
<footer>Name: footer</footer> <br />
<form>Name: form</form> <br />
<h1>Name: h1</h1> <br />
<h2>Name: h2</h2> <br />
<h3>Name: h3</h3> <br />
<h4>Name: h4</h4> <br />
<h5>Name: h5</h5> <br />
<h6>Name: h6</h6> <br />
<head>Name: head</head> <br />
<header>Name: header</header> <br />
<hgroup>Name: hgroup</hgroup> <br />
<hr>Name: hr</hr> <br />
<html>Name: html</html> <br />
<i>Name: i</i> <br />
<iframe>Name: iframe</iframe> <br />
<img>Name: img</img> <br />
<input>Name: input</input> <br />
<ins>Name: ins</ins> <br />
<kbd>Name: kbd</kbd> <br />
<keygen>Name: keygen</keygen> <br />
<label>Name: label</label> <br />
<legend>Name: legend</legend> <br />
<li>Name: li</li> <br />
<link>Name: link</link> <br />
<mark>Name: mark</mark> <br />
<map>Name: map</map> <br />
<menu>Name: menu</menu> <br />
<meta>Name: meta</meta> <br />
<meter>Name: meter</meter> <br />
<nav>Name: nav</nav> <br />
<noscript>Name: noscript</noscript> <br />
<object>Name: object</object> <br />
<ol>Name: ol</ol> <br />
<optgroup>Name: optgroup</optgroup> <br />
<option>Name: option</option> <br />
<output>Name: output</output> <br />
<p>Name: p</p> <br />
<param>Name: param</param> <br />
<pre>Name: pre</pre> <br />
<progress>Name: progress</progress> <br />
<q>Name: q</q> <br />
<ruby>Name: ruby</ruby> <br />
<rp>Name: rp</rp> <br />
<rt>Name: rt</rt> <br />
<samp>Name: samp</samp> <br />
<script type="application/json">Name: script</script> <br />
<section>Name: section</section> <br />
<select>Name: select</select> <br />
<small>Name: small</small> <br />
<source>Name: source</source> <br />
<span>Name: span</span> <br />
<strong>Name: strong</strong> <br />
<style>Name: style</style> <br />
<sub>Name: sub</sub> <br />
<summary>Name: summary</summary> <br />
<details>Name: details</details> <br />
<sup>Name: sup</sup> <br />
<table>Name: table</table> <br />
<tbody>Name: tbody</tbody> <br />
<td>Name: td</td> <br />
<textarea>Name: textarea</textarea> <br />
<tfoot>Name: tfoot</tfoot> <br />
<th>Name: th</th> <br />
<thead>Name: thead</thead> <br />
<time>Name: time</time> <br />
<title>Name: title</title> <br />
<tr>Name: tr</tr> <br />
<ul>Name: ul</ul> <br />
<var>Name: var</var> <br />
<video>Name: video</video> <br />
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