revision:
- 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?), resolution.
Using media queries are a popular technique for delivering a tailored style sheet (responsive web design) to desktops, laptops, tablets, and mobile phones. You can also use media queries to specify that certain styles are only for printed documents or for screen readers (mediatype: print, screen, or speech).
In addition to media types, there are also media features. Media features provide more specific details to media queries, by allowing to test for a specific feature of the user agent or display device. For example, you can apply styles to only those screens that are greater, or smaller, than a certain width.
Property values:
not : the "not" keyword inverts the meaning of an entire media query.
only : the "only keyword" prevents older browsers that do not support media queries with media features from applying the specified styles. It has no effect on modern browsers.
and : the "and" keyword combines a media feature with a media type or other media features.
@media only screen and (max-width: 600px) {
body {
background-color: lightblue;
}
}
@media screen and (max-width: 600px) {
div.example {
display: none;
}
}