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CSS brightness() Function
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CSS var() Function

Last Updated : 30 Aug, 2024
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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

Next Article
CSS brightness() Function

V
Vishal_Khoda
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Article Tags :
  • CSS
  • Web Technologies
  • CSS-Functions

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