We use CSS because of the following reasons:
CSS saves time: You can write CSS once and reuse the same sheet on multiple HTML pages. Easy Maintenance: To make a global change simply change the style, and all elements in all the webpages will be updated automatically. Search Engines: CSS is considered a clean coding technique, which means search engines won’t have to struggle to “read” its content. Superior styles to HTML: CSS has a much wider array of attributes than HTML, so you can give a far better look to your HTML page in comparison to HTML attributes. Offline Browsing: CSS can store web applications locally with the help of an offline cache. Using of this we can view offline websites.