Media Query

What Does Media Query Mean?

A media query is an HTML/CSS functionality that allows the content of a Web page to adapt to the type of media that the page is being rendered in, such as a computer screen or that of a phone or tablet. This is considered as a core technology for implementing responsive Web design and was recommended for implementation as a standard in June of 2012 together with other CSS3 functionalities.

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Techopedia Explains Media Query

Media queries consist of a media type along with one or more expressions that conditionally check for certain media features, particularly that of screen sizes. The logical expressions in a media query can be either true or false; it is true if the media type of the query matches that of the media type of the device where the user agent (Web browser) is running on; otherwise, it is false. When the media query results to true, then the corresponding style rules specified will be applied, following normal cascading rules. It must be noted that, even if the query results to false, style sheets specified within the <link> tag are still downloaded, but are simply not applied.

Example using the HTML <link> tag:

<link rel="stylesheet" media="(max-width: 600px)" href="specific.css" />

Example using @media within the <style> tag:

<style>
@media (max-width: 500px){
.left_sidebar {display: none; }
}
</style>

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Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…