CSS Vocabulary – declarations, declaration blocks and rules

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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 by the BLOCK DECLARATION.

CSS vocabulary – selectors and properties

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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 selector. h1 {border:1px solid #000000 } Of course, you can apply more than one property to any one selector. h1 …