CSS Overview
CSS refers to Cascading Style Sheets Styles define how to display HTML elements Styles are usually stored in style sheets Styles were added to HTML 4.0 to solve the problem of separation of content and presentation External style sheets can greatly improve work efficiency External style sheets are usually stored in CSS Multiple style definitions in the file can be stacked into one CSS syntax
CSS rules consist of two main parts: the selector, and one or more declarations. Properties are the style attributes you wish to set. Each property has a value, and the property and value are separated by a colon.
selector{property:value}
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