Difference between revisions of "ID selector (CSS)"

Revision as of 10:23, 16 February 2016

In CSS, an ID selector (or ID style rule, or ID style) is a selector which selects zero or one HTML element based on the element's ID attribute.

Description

An ID rule must apply exactly one HTML element on a page (or no HTML element at all).

• See ID attribute (HTML)

No two HTML elements on a given web page may have the same value for their ID attributes.

Example

ID style rule:

#example { color: red}

Element affected by rule:

<div id="example">...</div>

In the above example, div is an arbitrary HTML element. Any other type of HTML element works the same.

See also

• Cascading Style Sheets
• Class selector (CSS)
• HTML element selector (CSS)
• ID attribute (HTML)
• Style sheet (web design)