w3 . css code example

Example 1: css in html

<!-- EXAMPLE -->
<div class="your_class" style="display:none">

<!--[SYNTAX: style="<CSS-code>"] -->

Example 2: 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]">