how to add css to id code example

Example 1: css id

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

Example 2: id in css

#id{
    color:red;
}

Example 3: css how to style id

/*put a # infront of the id*/
/*<section id="example"></section>*/
#example{
	margin: auto;
}

Example 4: css class id

css
.class
#id

Example 5: div id css

<p class="haut">
<a href="#haut">Haut de page</a>
</p>