As you already know, all web page environments rely on Hypertext Markup Language (HTML) for their basic content and layout. Having a solid foundation in HTML is essential for building these pages. What you may or may not know is that a companion to HTML is the Cascading Style Sheet (CSS). Some CSS can be written within the HTML document itself, but most likely, for more extensive layout and design purposes, the CSS page lives as a separate but connected document to the HTML.
The other aspect of using more advanced levels of CSS is that you will have control of the user interface (UI) as well as the user experience (UX). Web pages are created all the time, but not many provide the best interface and user experience. Being able to showcase your abilities to enhance people’s lives through a powerful and informative web page layout will further your career opportunities, and in the end, the users coming to visit your pages will benefit from your expertise.