Key Takeaways Start with basic concepts like selectors, properties, and box model before moving to layouts.Use online tools ...

CSS is a language that site designers use to define the way objects look on webpages. These attributes, such as color and opacity, have values as shown in the following example: .redBorder ...

Using custom CSS, you can add a colored background to your posts without editing your posts in other ways and without changing the background of the rest of your blog's body. Log in to Tumblr and ...