An Overview of HTML Tags HTML is broken up into source code and page output .
Source code uses what are called tags to create specific formatting within text.
Below is a list of commonly used tags, with examples of how they look when outputted within a document. This is a line of text and this is another. It's important to remember that tags can be combined. Here is a sentence which is in bold face, italics and is centered. Here is a sentence which is in bold face, italics and is centered.