Finding elements using CSS selectors
The Cascading Style Sheets (CSS) is a style sheet language used to describe the presentation semantics (the looks and formatting) of a document written in a markup language such as HTML or XML.
Major browsers implement CSS parsing engines to format or style the pages using CSS syntax. CSS was introduced to keep the presentation information separate from the markup or content. For more information on CSS and CSS selectors, visit http://en.wikipedia.org/wiki/Cascading_Style_Sheets.
In CSS, the pattern-matching rules determine which style should be applied to elements in the DOM. These patterns, called selectors, may range from simple element names to rich contextual patterns. If all conditions in the pattern are true for a certain element, the selector matches the element, and the browser applies the defined style in CSS syntax.
In this recipe, we will explore some basic CSS selectors and then, later on, we will dive into advanced CSS selectors.
