A DECLARATION is the set of property names and their accompanying values. A DECLARATION BLOCK is nothing more than a set of DECLARATIONS within the tags { }. A RULE [sometimes known as a RULE SET] is a SELECTOR/S followed … Continued
CSS Vocabulary
CSS vocabulary – selectors and properties
CSS uses SELECTORS for binding style properties to elements in the document. For instance, the selector ‘h1′ represents an element in the document tree. h1{} You can apply PROPERTIES to that selector, such as applying a border to the h1 … Continued