w3 schools html css code example
Example 1: how to link css to html
<link rel="stylesheet" href="PathToYourFile.css">
Example 2: how to link your css file to html
<head>
<link rel='stylesheet' href='style.css'>
</head>
Example 3: css in html
<!-- EXAMPLE -->
<div class="your_class" style="display:none">
<!--[SYNTAX: style="<CSS-code>"] -->
Example 4: CSS IN HTML
<!-- There are 3 ways to do this-->
<!-- #1: Inline CSS-->
<h1 style="color: red;">Red Heading</h1>
<!-- #2 Element CSS-->
<style>
h1 {
color: red;
}
</style>
<h1>Red Heading</h1>
<!-- #3 Stylesheet CSS-->
<link rel="stylesheet" href="[stylesheet link]">