Cascading Style Sheets or CSS are an important way to control how your Web pages look. CSS can control the fonts, text, colors, backgrounds, margins, and layout. But it can be very difficult to learn CSS, and some people would rather not learn it. There are some very good reasons to learn CSS so that you can control your Web pages look.
Modify your site designs to look how you want them to look
It's easy to take a free Web template and build a website. But these templates can be very plain or common. So your website will look like every other site on the internet. By learning CSS you can modify pre-built templates so that they have your colors and styles. Thus you'll have a customized website without a lot of effort.
There are a lot of Web designers who will build your website or your CSS for you. But paying someone else to maintain your website or blog can get expensive, even if you only have them create the designs and you then maintain the content. Knowing how to modify the CSS will save you money when you find small problems that you can fix yourself. And as you practice, you'll be able to fix bigger and bigger problems.
Once you know CSS really well, you can sell these services to other websites. And if you're looking to become a freelance Web designer, you won't get far if you don't know CSS.
Redesign your site more quickly
Many older websites that were built without CSS are very difficult to redesign. But once a site is built with CSS hooks it can be redesigned very quickly. Changing things like the colors and backgrounds can change how a site looks with very little effort. In fact, many sites now put up special versions of their sites for special occasions and they can do this because it only takes a few hours to create an alternate style sheet for the occasion.
Build more diverse websites
CSS gives you the opportunity to create sites that look very different from page to page, without a lot of extensive coding. For example, many sites now do slight color variations on the different sections of the site. Using page IDs, you can change the CSS for each section and use the same HTML structure for each section. The only thing that changes is the content and the CSS.