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What is a Media Query? Media query is a CSS technique introduced in CSS3. It uses the @media rule to include a block of CSS properties only if a certain condition is true.
Media queries in CSS3 extended the CSS2 media types idea: Instead of looking for a type of device, they look at the capability of the device. Media queries can be used to check many things, such as: width and height of the viewport. orientation of the viewport (landscape or portrait) resolution.
Media queries are a popular technique for delivering a tailored style sheet to different devices. To demonstrate a simple example, we can change the background color for different devices: Example
The @media rule is used in media queries to apply different styles for different media types/devices. Media queries can be used to check many things, such as: width and height of the viewport. width and height of the device. orientation (is the tablet/phone in landscape or portrait mode?)
Media queries are used to determine the width and height of a viewport to make web pages look good on all devices (desktops, laptops, tablets, phones, etc). The window.matchMedia() method returns a MediaQueryList object representing the results of the specified CSS media query string.
padding: 20px; color: white; } /* Extra small devices (phones, 600px and down) */. @media only screen and (max-width: 600px) {. .example {background: red;} } /* Small devices (portrait tablets and large phones, 600px and up) */.
The media attribute accepts any valid media query that would normally be defined in a CSS. Note: This attribute can accept several values.
Learn how to use media queries for common device breakpoints. Typical Device Breakpoints There are tons of screens and devices with different heights and widths, so it is hard to create an exact breakpoint for each device.
Using Variables in Media Queries. Now we want to change a variable value inside a media query. Tip: Media Queries are about defining different style rules for different devices (screens, tablets, mobile phones, etc.). You can learn more Media Queries in our Media Queries Chapter.
Media queries are used to determine the width and height of a viewport to make web pages look good on all devices (desktops, laptops, tablets, phones, etc). The window.matchMedia() method returns a MediaQueryList object representing the results of the specified CSS media query string.