Cascading Style Sheets are a skill every professional programmer needs to have.
What CSS (that's web designer talk for "cascading style sheets") gives the web developer is an easy way to create, organize, and modify a web site.
For example, if you designed a web site that was 100 separate html pages, and when you were finished decided that you wanted to change the type style you used ... it would be a major operation requiring you to go to each page and make the necessary adjustments. Unless you had used CSS in your original design.
With CSS, you could make one simple change and ALL of the pages would be updated!
Cascading Style Sheets are worth learning how to use.
And that is what we will do in this lesson. We'll begin by working through the material at w3schools. Take the time to learn how to use CSS and you will be a very happy web designer!!!
"CSS Tutorial" at w3schools.com