CSS Media Queries

Last Updated : 09 Jan, 2025

CSS Media Queries are used to apply CSS styles according to the screen size.

Media queries detect device features like screen width, height, and resolution.
Breakpoints define the screen sizes where the design needs to change.
They ensure a smooth, user-friendly experience across all devices.

Syntax:

@media mediatype and (condition) {
  /* CSS styles */
}

HTML

<!--Driver Code Starts-->
<html>
<head>
<!--Driver Code Ends-->

    <style>
        .gfg {
            color: black;
        }
        @media screen and (max-width: 500px) {
            .gfg {
                color: green;
            }
        }
    </style>

<!--Driver Code Starts-->
</head>
<body>
    <div class="gfg">Sample Example of Media Query</div>
</body>
</html>
<!--Driver Code Ends-->

Media queries apply CSS rules based on device characteristics like screen width.
In your code, screens ≤500px wide change .gfg text color to green.

Note: It is compulsory to add the viewport meta tag for media queries to work correctly. Learn more about it here.

Media Types in CSS

Media types specify which devices the styles should apply to. Commonly used types include:

Media Type	Description
`all`	Suitable for all media devices.
`print`	Used for printers.
`screen`	Targeted at computer screens, tablets, smartphones, etc.
`speech`	Designed for screen readers that read the content aloud.

More Examples of CSS Media Queries

Media Queries for Multiple Screen Sizes

HTML

<!--Driver Code Starts-->
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
<!--Driver Code Ends-->

    <style>
        .gfg {
            color: black;
        }
        @media screen and (max-width: 800px) {
            .gfg {
                color: blue;
            }
        }
        @media screen and (max-width: 500px) {
            .gfg {
                color: green;
            }
        }
    </style>

<!--Driver Code Starts-->
</head>
<body>
    <div class="gfg">Sample Example of Media Query</div>
</body>
</html>
<!--Driver Code Ends-->

In this Example:

Styles adjust dynamically based on screen width using media queries.
For screens 800px or smaller, the text color changes to blue.
For screens 500px or smaller, the text color changes to green.

Media Queries for Multiple Screen Sizes with Additional Styles

HTML

<!--Driver Code Starts-->
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
<!--Driver Code Ends-->

    <style>
        .gfg {
            color: black;
            font-size: 20px;
            padding: 10px;
        }
        @media screen and (max-width: 800px) {
            .gfg {
                color: blue;
                font-size: 18px;
            }
        }
        @media screen and (max-width: 500px) {
            .gfg {
                color: green;
                font-size: 16px;
                text-align: center;
            }
        }
    </style>

<!--Driver Code Starts-->
</head>
<body>
    <div class="gfg">Sample Example of Media Query</div>
</body>
</html>

<!--Driver Code Ends-->

In this example:

Styles dynamically adjust based on screen width using media queries.
For screens 800px or smaller, the text color becomes blue, and the font size decreases to 18px.
For screens 500px or smaller, the text color changes to green, the font size reduces to 16px, and the text is center-aligned.

CSS Media Query Features

Media queries allow developers to check various device characteristics. Here are some important features:

Feature	Description
color	Specifies the number of bits per color component for the device.
grid	Checks whether the device is grid or bitmap.
height	Represents the height of the viewport.
aspect ratio	Defines the width-to-height ratio of the viewport.
color-index	Indicates how many colors the device can display.
max-resolution	The highest resolution the device can achieve, measured in dpi or dpcm.
monochrome	Shows the number of bits per color on a monochrome device.
scan	Refers to the method of scanning used by the output device.
update	Describes how fast the device can update its display.
width	Represents the width of the viewport.

Why Use Media Queries?

Improves user experience: Responsive designs provide an optimal viewing experience, making it easier for users to interact with the website.
Ensures functionality: Media queries help ensure that all content is accessible and looks good, regardless of the device being used.
Boosts SEO: Search engines prioritize mobile-friendly sites. A responsive design improves your website’s search engine ranking.

Best Practices for Media Query

Start with a mobile-first approach, then enhance for larger screens.
Use relative units like em or rem for flexibility.
Test designs across multiple devices and browsers.

S

SrishtiGoel

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