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CSS Data Type - <ratio>
CSS data type <ratio> is used for describing aspect ratios in media queries.
The proportion between two positive integers is represented by the <ratio> data type, which is defined as two numbers separated by a forward slash (/), with spaces permitted between the numbers and the slash.
The <ratio> data type in media queires consists of two positive <integer>s that indicate width and height, respectively, followed by a forward slash (/) and another positive <integer>. You can add spaces both before and after the slash.
The <ratio> data type also includes a positive <number>, a forward slash (/), and another positive <number>. One <number> is now also permitted as an acceptable value.
Syntax
<ratio> = <number [0,∞]> [ / <number [0,∞]> ]?
Common aspect ratios
Following is the list of common aspect ratios:
Ratio | Use | Sample |
---|---|---|
4/3 | The traditional television format of the 20th century. | |
16/9 | The "widescreen" TV format of today. | |
185/100=91/50 | the most widely used format for movies since the 1960s. | |
239/100 | Anamorphic, "Widescreen," film format. |
CSS <ratio> - Basic Example
The following example demonstrates the usage of CSS datatype <ratio> in media querry.
<html> <head> <style> .content { text-align: center; padding: 20px; background-color: lightblue; border-radius: 10px; } @media screen and (min-aspect-ratio: 91/50) { .content { background-color: lightgreen; } } </style> </head> <body> <div class="content"> <h3>Resize your browser window to see the effect.</h3> <p>This content will have different background colors based on aspect ratio.</p> </div> </body> </html>
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