CSS flex-grow Property
CSS flex-grow Property
CSS flex-grow property specifies how much of the remaining space in the flex container should be assigned to the specific flex item.
Example
<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
p+div{
display: flex;
width: 100%;
border: 1px solid #8c8c8c;
}
p+div > div{
height: 90px;
border: 1px solid #8c8c8c;
margin: 10px;
flex-grow: 1;
-webkit-flex-grow: 1;
}
#parent1 > div:nth-child(2){
flex-grow: 2;
-webkit-flex-grow: 2;
}
</style>
</head>
<body>
<h1>CSS flex-grow Property</h1>
<p>The following div has all child with flex-grow: 1;</p>
<div id="parent">
<div>Div 1</div>
<div>Div 2</div>
<div>Div 3</div>
</div>
<p>The following div has first and third child with flex-grow: 1; and second child with flex-grow: 2</p>
<div id="parent1">
<div>Div 1</div>
<div>Div 2</div>
<div>Div 3</div>
</div>
</body>
</html>
Syntax
Using CSS
element{
flex-grow: 1;
}
Using Javascript
object.style.flexGrow="1";
Animatable
Yes, flex-grow property is animatable. CSS Animatable Properties Reference.
Default Value
Default value for CSS flex-grow property is 0.
Property Value
The following table provides a list of values for CSS flex-grow property.
| Value | Explanation |
|---|
| Number | A number specifying how much the item will grow relative to the rest of the flexible items. Negative values are invalid. |
Using JavaScript
In the following example, we will demonstrate how to change the CSS flex-grow property of an element using JavaScript.
Example
<!DOCTYPE html>
<html lang="en-US">
<head>
<style>
#parent{
display: flex;
width: 100%;
border: 1px solid #8c8c8c;
}
#parent > div{
height: 90px;
border: 1px solid #8c8c8c;
margin: 10px;
flex-grow: 1;
-webkit-flex-grow: 1;
}
</style>
</head>
<body>
<h1>CSS flex-grow Property</h1>
<div id="parent">
<div>Div 1</div>
<div>Div 2</div>
<div>Div 3</div>
</div>
<button onclick="myFunction()">Click Me</button>
<script>
var x = document.getElementById("parent").firstElementChild;
function myFunction(){
x.style.flexGrow = "2";
x.style.WebkitFlexGrow = "2";
}
</script>
</body>
</html>
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