Definition and Usage The <header> element represents a container for introductory content or a set of navigational links. A <header> element typically contains: one or more heading elements (<h1> - …

ABOUT EMAIL HEADERS This tool will make email headers human readable by parsing them according to RFC 822. Email headers are present on every email you receive via the Internet and …

The <header> HTML element represents introductory content, typically a group of introductory or navigational aids. It may contain some heading elements but also a logo, a search form, an author …

Use the basic header if you have few enough sections in your main navigation to fit comfortably next to your logo; this decision will depend on the length of your text and whether you include a search bar.

In information technology, header is supplemental data placed at the beginning of a block of data being stored or transmitted. In data transmission, the data following the header is sometimes called the …

Nov 2, 2025 · A header is text at the top of a page in an electronic document or hard copy. For example, in Microsoft Word, a header could be created in a document to display the page number of each page.

Jul 28, 2025 · Keep it clear: The <header> tag should contain introductory content. It’s not meant to hold all content; its purpose is to help introduce or navigate the content.

Nov 23, 2010 · A header element is intended to usually contain the section's heading (an h1–h6 element or an hgroup element), but this is not required. The header element can also be used to wrap a …

Aug 24, 2025 · A header is an essential part of a window's structural support. Learn what size header is needed for a window.

Nov 18, 2025 · A HTML header contains one or more heading elements, logos or icons. Learn how to implement HTML headers along with an example. Read on!