Summary Three

CSS

CSS overview

CSS is used to create a stylesheet to tell your website what the documents text and body should look like. It allowed HTML to be just a place for tagging if that’s what it needed to be. It created fewer problems with the web just by using a CSS stylesheet.

CSS Class and ID Selectors

Id selectors are used for specific things with your HTML. An Id can only be used once per page. An ID starts with a hashtag (#). With a class selector that can be used more than once. A class selector starts with a period. (.)

Other CSS Selectors

If you want something to affect all of the HTML, then you use the universal selector (*). There is also a grouping selector that allows all elements that have the same style to be grouped together. It would look like h1,h4,h6 { color: blue;}.