CSS var() Function
The var() function in CSS is used to insert a value for a custom property.
Syntax:
var( custom_property, value )
Parameters: This function accepts two parameters which are listed below:
- custom_property: It is the required parameter. The name of the custom property must start with two dashes(–).
- value: It is an optional parameter. It is used if the custom property is invalid.
Example: The below program illustrates the var() function in CSS:
html
<!-- HTML code to describes var() function in CSS --><!DOCTYPE html><html><head> <title>var() function</title> <style> :root { --main-bg-color: Green; } /* Use of var() function */ .gfg1 { background-color: var(--main-bg-color); padding: 10px; } .gfg2 { background-color: var(--main-bg-color); padding: 5px; } h1 { color: green; } body { text-align: center; } </style></head><body> <h1>GeeksforGeeks</h1> <h2>var() function</h2> <div class="gfg1">GeeksforGeeks</div><br> <div class="gfg2"> A computer science portal for geeks </div></body></html> |
Output:
Supported Browsers: The browser supported by var() function are listed below:
- Google Chrome 49.0
- Edge 15.0
- Firefox 31.0
- Safari 9.1
- Opera 36.0
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