41 lines
1.8 KiB
Markdown
41 lines
1.8 KiB
Markdown
---
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title: CSS3 at Media Rule
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---
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## CSS3 at Media Rule
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The CSS3 Media rule is a rule that allows for use of media queries. Media queries can allow you to style your webpage (either a portion or all of it) differently based on different media types or devices.
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A Media Query is created by using the `@media` tag and then supplying a rule in order to check for things such as:
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* Width and height of the current viewport
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* Orientation of the device (this applies to tablets or phones)
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* Current resolution
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* And More
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There are currently four possible Media Types:
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* all (Default - this will target all devices)
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* print (Used for printers; e.g. providing separate print styles)
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* screen (Used for computers, phones, tablets, etc.)
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* speech (Used for accessibility devices such as screenreader that narate the contents of a webpage)
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Media queries are used for all sorts of purporses as they allow many differnet media features. One of the most common uses of a Media query is to make a web page responsive; meaning it will behave differently based on the screen size.
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An example media query is as follows:
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```CSS
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@media screen and (max-width: 1000px) {
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body {
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background: #000;
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}
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}
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```
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The CSS in the Media Query rule only applies when the rule holds true. For example, looking at the snippet above, the body background will be changed to `#000` only when the a user visits the page with a device that is 1000px wide or less. If above 1000px, that rule will not apply.
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#### More Information:
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* [CSS @media Rule](https://www.w3schools.com/cssref/css3_pr_mediaquery.asp)
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* [Using media queries](https://developer.mozilla.org/en-US/docs/Web/CSS/Media_Queries/Using_media_queries)
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