hrefsivuhtmlsection

hrefsivuhtmlsection is an informal label used in web development to describe in-page navigation that uses the href attribute to link to a section within an HTML document. It is not an official HTML element or attribute, but a way to refer to the technique of fragment identifiers for navigating to specific parts of a page.

The mechanism relies on a pair of elements: a link with a fragment in its href, and a target element that carries a matching id. For example, a link with href="#section1" will scroll the page to the element that has id="section1" when activated. If the page contains no element with that id, the browser will not scroll to a new location. Fragment navigation does not require a page reload, and the URL’s fragment portion updates to reflect the target.

Typical usage includes a table of contents or internal navigation within long documents. For instance, a link labeled Introduction might use href="#introduction" and the corresponding section would be marked with <section id="introduction">. It is also possible to link to a section on another page using a full URL like page.html#section2. In single-page applications, hash-based navigation may be complemented with JavaScript for smooth scrolling or dynamic content loading.

Accessibility and best practices emphasize descriptive, unique ids, visible focus states on links, and careful structure to support keyboard and screen reader users. Fragment identifiers are client-side concerns and are useful for deep linking, bookmarking, and improving navigability within long pages. See also: fragment identifier, in-page navigation, id attribute, anchor element.