The CSS * selector is a universal selector which is used to select all elements of the HTML DOM.
Syntax
The syntax for CSS universal selector is as follows −
* {
/*declarations*/
}The following examples illustrate CSS universal selector −
Example
<!DOCTYPE html>
<html>
<head>
<style>
* {
margin: 15px;
padding: 5px;
border: 2px solid black;
box-shadow: inset 30px 0 8px lightblue;
}
</style>
</head>
<body>
<table>
<tr>
<td></td>
<td></td>
</tr>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</table>
</body>
</html>Output

Example
<!DOCTYPE html>
<html>
<head>
<style>
* {
margin: 15px;
padding: 5px;
width: 200px;
border: 2px solid black;
}
html::before {
content: "one";
}
</style>
</head>
<body>
two
<div>three
<div>four
<div>five</div>
</div>
</div>
</body>
</html>Output
