What is CSS?

Cascading Style Sheets hold the answer to many of the content-design problems. With CSS, writers can put a plain version of their page on the screen and later add the styling. CSS also guarantees that some form of the page will display.
Older browsers have difficulty deciphering newer programming languages. A reader might experience misaligned fonts or words, tables that overlap in odd areas, or, worst of all, their browser might not allow them to access the page. This frustrating situation is much like a reader glancing at a printed newspaper only to find foreign fonts, a giant graphic in the middle of block of text or being unable to even open the newspaper. Web readers have come to expect kinks in their experience, but conflicting browser versions are not meant to give them trouble. Why should a site barely lose credibility for its design flaws when its print readers would be appalled to find missing pages? Web designers now are giving shape to a standard that will clearly display pages across all browsers.
Tweaking your stylesheet in Blogger is not difficult. If you’re scared to touch code that you don’t understand, don’t worry. You can’t break your site. Stylesheets are easy to reload. Play around with yours to customize your site. (Next post, I’ll talk about how to do that).