It's possible to assign multiple classes to an element by setting the value of the element's class attribute to be the names of the classes, separated by spaces. The following HTML W html element two classes Select all elements with the class name callout that are decendents of the element with an ID of header. Here is the plain English of # header. callout : Select the element which has an ID of header and also a class name of callout.
To assign multiple classes to an html element, include both class names within the quotations of the class attribute and have them separated by a space: In the above example, column and wrapper are two separate css classes, and both of their properties will be applied to the article element html element two classes