write css with an element 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: css how to style id

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