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CSS flex-basis Property

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The flex-basis property in CSS is used to specify the initial size of the flexible item. The flex property is not used if the element is not flexible item.

Syntax:  

flex-basis: number|auto|initial|inherit;

Default Value: 

  • auto 

Property Values: 

  • number: It is a length unit that define the initial length of that item.
  • auto: It is the default value, if the length is not specified the length will be according to it’s content.
  • initial: It sets the property to it’s default value.
  • inherit: It specifies that a property should inherit its value from its parent element.

Example 1:  

html

<!DOCTYPE html>
<html>
      
<head>
    <style>
        .Geeks {
            width: 385px;
            height: 70px;
            display: flex;
        }
          
        .Geeks div {
            flex-grow: 0;
            flex-shrink: 0;
            flex-basis: 80px;
              
            /* For Safari 6.1 and above browsers */
            -webkit-flex-grow: 0; 
            -webkit-flex-shrink: 0;
            -webkit-flex-basis: 80px;
        }
          
        .Geeks div:nth-of-type(2) {
            flex-basis: 50%;
        }
        .Geeks div:nth-of-type(3) {
            flex-basis: auto;
        }
        .Geeks div:nth-of-type(4) {
            flex-basis: initial;
        }
        .Geeks div:nth-of-type(5) {
            flex-basis: inherit;
        }
    </style>
</head>
  
<body>
    <center>
          
        <h1>
            The flex-basis Property
        </h1>
          
        <div class = "Geeks">
              
            <div style = "background-color:green;">
                number 80px
            </div>
              
            <div style = "background-color:lightgreen;">
                percentage
            </div>
              
            <div style = "background-color:green;">
                auto
            </div>
              
            <div style = "background-color:lightgreen;">
                initial
            </div>
              
            <div style = "background-color:green;">
                inherit
            </div>
        </div
          
    </center>
</body>
  
</html>                    

                    

Output: 

Example 2: 

html

<!DOCTYPE html>
<html>
      
<head>
    <style>
        .Geeks {
            width: 560px;
            height: 100px;
            border: 1px solid black; 
            display: flex;
        }
          
        .Geeks div {
            flex-grow: 0;
            flex-shrink: 0;
            flex-basis: 80px;
        }
        .Geeks div:nth-of-type(2) {
            flex-basis: 200px;
        }
        .Geeks div:nth-of-type(5) {
            flex-basis: 120px;
        }
        h3{
            color:Green;
        }
    </style>
</head>
  
<body>
    <center>
          
        <h1>
            The flex-basis Property
        </h1>
          
        <div class = "Geeks">
            <div style="background-color:green">
                80px
            </div>
              
            <div style="background-color:lightgreen">
                GeeksforGeeks <br>200px
            </div>
              
            <div style="background-color:green">
                80px
            </div>
              
            <div style="background-color:lightgreen">
                80px
            </div>
              
            <div style="background-color:green">
                120px
            </div>
        </div
    </center>
</body>
  
</html>                    

                    

Output: 

Supported Browsers: The browser supported by flex-basis property are listed below: 

  • Google Chrome 29.0
  • Edge 12
  • Internet Explorer 11.0
  • Mozilla Firefox 22.0
  • Safari 9.0
  • Opera 12.1
     


Last Updated : 02 Jun, 2023
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