Developers use ... if a class defines a width of 100 pixels, all DIVS referencing that class will be 100 pixels wide. You can override a DIV's CSS class definition by updating the DIV's HTML ...

Cascading style sheets (CSS ... for styling HTML elements that can be added to Web pages in one of three ways: externally, internally or inline. Two advantages of using external style sheets ...

The use of classes is also very common when creating webpages. Classes operate in a similar way to element IDs but rather than relating to the id of an individual element, styles for a class can ...