Apply a class to a br tag?

Question

Is the following valid HTML?

As an HTML element I can\'t see why it wouldn\'t be, but I don\'t think I\'ve eve

Answer 1

It is valid in HTML 4.01, because the class attribute is allowed for the br element. It is also valid in HTML5 in HTML serialization, because the class attribute is allowed for all elements. It is not valid XHTML without a matching
.