CSS is a technology called stylesheet. Others call it Cascading Stylesheet.
CSS technology is used in homepage production, which can effectively control the layout, font, color, background and other effects of the page more accurately. You can change the appearance and format of different parts of the same page or pages with different pages by simply modifying the corresponding code.
Its function can achieve:
1. It can be used on almost all browsers.
2. In the past, some functions that had to be realized through image conversion can now be easily realized with CSS, so that pages can be downloaded faster.
3. Make the font of the page more beautiful, easier to arrange, and make the page really pleasing to the eye.
4. You can easily control the layout of the page.
5. You can update the style and format of many web pages at the same time, instead of updating page by page. You can use a CSS file to control the style of all pages on the site. As long as you modify the corresponding lines in the CSS file, all pages of the entire site will change accordingly.