CSS selectors identify specific HTML elements as targets for CSS styles. This topic covers how CSS selectors target HTML elements. Selectors use a wide range of over 50 selection methods offered by the CSS language, including elements, classes, IDs, pseudo-elements and pseudo-classes, and patterns.
With CSS you can set colors, gradients, and images as the background of an element.
It is possible to specify various combinations of images, colors, and gradients, and adjust the size, positioning, and repetition (among others) of these.