Try It Yourself: CSS Pseudo-classes and Pseudo-elements

HTML Code

<!DOCTYPE html>
<html>
<head>
  <title>CSS Pseudo-classes and Pseudo-elements</title>
  <meta charset="UTF-8">
</head>
<body>

<h1>CSS Pseudo-classes and Pseudo-elements</h1>

<div class="handle">
  Hover over me
  <span>
    This is a simple tooltip effect.
  </span>
</div>

<style>
.handle{
  position: relative;
  padding: 5px 15px;
  background: #096;
  color: #fff;
  width: 150px;
  text-align: center;
  cursor: pointer;
  margin-bottom: 10px;
}
.handle span{
  display: none;
  position: absolute;
  background: #333;
  width: 220px;
  padding: 3px 10px;
  border-radius: 20px;
  left: 110%;
  top: 10%;
}
.handle span:after{
  content: '';
  position: absolute;
  top: 8%;
  left: -7px;
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  border-right: 20px solid #333;
}
.handle:hover span{
  display: block;
}
</style>

<h2>:first-child, :last-child and :nth-child</h2>

<ul class="style-child">
  <li>Item 1</li>
  <li>Item 2</li>
  <li>Item 3</li>
  <li>Item 4</li>
  <li>Item 5</li>
</ul>
<style>
.style-child{
  max-width: 200px;
  border: 1px solid #ccc;
  padding: 10px;
  list-style: none;
}
.style-child li:first-child{
  color: #f00;
}
.style-child li:nth-child(3){
  color: #096;
}    
.style-child li:last-child{
  color: #096;
}  
</style>

<h2>::target</h2>

<a href="#demo">Click this link to see the target styled</a>

<div id="demo">
  Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
  tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
  quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
  consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
  cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
  proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
</div>

<style>
:target{
  color: #f00;
}  
#demo{
  border: 1px solid #ccc;
  padding: 10px;
}
</style>

<h2>::first-letter and ::first-line</h2>

<p class="first">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>

<style>
.first::first-letter{
  font-size: 60px;
}
.first::first-line{
  color: #f00;
}
</style>

<h2>::before</h2>

<ul class="demo-list">
  <li>List Item 1</li>
  <li>List Item 2</li>
  <li>List Item 3</li>
  <li>List Item 4</li>
  <li>List Item 5</li>
</ul>

<style>
.demo-list li::before{
  content: url(logo-icon.png);
  margin-right: 10px;
}  
</style>

<h2>::after</h2>

<h3 class="demo-h3">Demo Content</h3>
<style>
.demo-h3::after{
  content: url(logo-icon.png);
  margin-left: 10px;
}
</style>

<h2>::selection</h2>

<p class="select">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</p>

<style>
.select::selection {
  color: red; 
  background: yellow;
}
</style>


</body>
</html>

CSS Code

/* Write your CSS here */

CSS Pseudo-classes and Pseudo-elements - Playground