When writing in HTML, the tag was a block element used to designate a specific window within a element. It was useful in some instances because it allowed each window to have its own set of attributes and could contain an entire document. The following sections contain information about the tag, including an example of its code, and related attributes and browser compatibility. Example of code Attributes Within an HTML tag, an attribute dictates certain aspects of an HTML element. Attributes are made up of a name and value pair; all tags support standard attributes. The tag is deprecated, but at one time it utilized the unique attributes contained in the following table. The element is not supported going forward. We recommend using either the or tag with CSS to achieve a similar effect. Example of code Attributes Compatibility Related information Compatibility Browser, Code, Compatibility, Scroll bar, URL, Web design terms, Window Related information HTML and web design help and support.