Universal selector
You can apply styles to all elements in the document by using the universal selector.
The universal selector is an asterisk (*).
* { margin: 0; }
In the above example, the style is applied to all element types in the document.
<html>
<head>
<title>TAG index</title>
<style type="text/css">
* { margin: 0; }
</style>
</head>
<body>
<h1>The style is applied to this heading</h1>
<p>The style is applied to this text.</p>
<h2>The style is applied to this heading</h2>
<p>The style is applied to this text.</p>
<h3>The style is applied to this heading</h3>
<p>The style is applied to this text.</p>
</body>
</html>
