Difference between revisions of "ID selector (CSS)"
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| − | In [[CSS]], an '''ID selector''' (or '''ID style rule''', or '''ID style''') is a [[selector]] which selects | + | In [[CSS]], an '''ID selector''' (or '''ID style rule''', or '''ID style''') is a [[selector]] which selects an [[HTML element]] based on the element's [[ID attribute (HTML)|ID attribute]]. |
== Description == | == Description == | ||
Latest revision as of 19:34, 5 October 2016
In CSS, an ID selector (or ID style rule, or ID style) is a selector which selects an 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).
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.
