Try it Yourself: CSS Pseudo-elements

CSS Pseudo-elements

<!DOCTYPE html>
<html>
<head>
<style>
.required::after {
  content: " *";
  color: #c00;
}
</style>
</head>
<body>

<label class="required">Email address</label>

</body>
</html>

<!DOCTYPE html>
<html>
<head>
<style>
.required::after {
  content: " *";
  color: #c00;
}
</style>
</head>
<body>

<label class="required">Email address</label>

</body>
</html>