How to Use DIV and Span in HTML and CSS: 2 Steps (with Pictures) - wikiHow
<div> is used to make divisions on the page, so you can even use div tags inside a <div>. CSS markup 1 In the <style>, give the <div> an ID and set its height, width, background-color, etc. You can use # for making an ID for your <div> or just simply write div and set its height, width, etc. But when you have many divs, its better to use an ID.