ALIGN is actually a property of a tag. It is not a tag itself. It can be used in many different tags. The most common is the Paragraph tag. Align moves text or other objects on the web page to the LEFT, RIGHT, or CENTER.

<p align="center"> This text is centered. </p> This text is left aligned by default.

See the example in action.
Another way to center text or objects on a page is to use the CENTER tag.

<center> This text is centered. </center> This text is left aligned by default.

See the example in action.