id in csss code example

Example 1: css id

<style>
	#your_id{
		color: blue;
		font-size: 24px;
	}
</style>
<h1 id="your_id">Example text</h1>

Example 2: css id

#id {
  css declarations;
}
Demo

Example 3: id in css

#id{
    color:red;
}