The grid-auto-columns property in CSS is used to specify the size of the columns of implicitly generated grid containers.
Syntax:
grid-auto-columns: auto | max-content | min-content | length | percentage | minmax(min, max) | initial | inherit;Property Values:
Property Value | Description |
|---|---|
auto | It is the default value. The size is determined implicitly according to the size of the container. |
length | It is used to specify the size as an integer length. Negative values are not allowed. |
percentage | It specifies the size as a percentage value. |
max-content | It specifies the size depending on the largest item in the container. |
min-content | It specifies the size depending on the smallest item in the container. |
minmax(min, max) | It specifies the size in the range of [min, max]. greater than or equal to min and less than or equal to max. |
initial | It sets the grid-auto-columns property to its default value. |
inherit | It sets the grid-auto-columns property from its parent element. |
Different Examples of CSS Grid auto Column Property
Example 1: In this article, we are using grid-auto-columns: auto property.
<!DOCTYPE html>
<html>
<head>
<title>
CSS grid-auto-column Property
</title>
<style>
.main {
display: grid;
grid-template-areas: "a a";
grid-gap: 20px;
padding: 30px;
background-color: green;
grid-auto-columns: auto;
}
.GFG {
text-align: center;
font-size: 35px;
background-color: white;
padding: 20px 0;
}
</style>
</head>
<body>
<div class="main">
<div class="GFG">1</div>
<div class="GFG">2</div>
<div class="GFG">3</div>
<div class="GFG">4</div>
<div class="GFG">5</div>
</div>
</body>
</html>
Output:
Example: In this article, we are using the grid-auto-columns: length property.
<!DOCTYPE html>
<html>
<head>
<title>
CSS grid-auto-column Property
</title>
<style>
.main {
display: grid;
grid-template-areas: "a a";
grid-gap: 20px;
padding: 30px;
background-color: green;
grid-auto-columns: 8.5cm;
}
.GFG {
text-align: center;
font-size: 35px;
background-color: white;
padding: 20px 0;
}
</style>
</head>
<body>
<div class="main">
<div class="GFG">1</div>
<div class="GFG">2</div>
<div class="GFG">3</div>
<div class="GFG">4</div>
<div class="GFG">5</div>
</div>
</body>
</html>
Output: 
Example: In this example, we are using grid-auto-columns: percentage property.
<!DOCTYPE html>
<html>
<head>
<title>
CSS grid-auto-column container Property
</title>
<style>
.main {
display: grid;
grid-template-areas: "a a";
grid-gap: 20px;
padding: 30px;
background-color: green;
grid-auto-columns: 30%;
}
.GFG {
text-align: center;
font-size: 35px;
background-color: white;
padding: 20px 0;
}
</style>
</head>
<body>
<div class="main">
<div class="GFG">1</div>
<div class="GFG">2</div>
<div class="GFG">3</div>
<div class="GFG">4</div>
<div class="GFG">5</div>
</div>
</body>
</html>
Output:
Example: In this example, we are using grid-auto-column :minmax() property.
<!DOCTYPE html>
<html>
<head>
<title>
CSS grid-auto-column Property
</title>
<style>
.main {
display: grid;
grid-template-areas: "a a";
grid-gap: 20px;
padding: 30px;
background-color: green;
grid-auto-columns: minmax(100px, 4cm);
}
.GFG {
text-align: center;
font-size: 35px;
background-color: white;
padding: 20px 0;
}
</style>
</head>
<body>
<div class="main">
<div class="GFG">1</div>
<div class="GFG">2</div>
<div class="GFG">3</div>
<div class="GFG">4</div>
<div class="GFG">5</div>
</div>
</body>
</html>
Output:
Example: In this example, we are using grid-auto-column: initial property.
<!DOCTYPE html>
<html>
<head>
<title>
CSS grid-auto-column Property
</title>
<style>
.main {
display: grid;
grid-template-areas: "a a";
grid-gap: 20px;
padding: 30px;
background-color: green;
grid-auto-columns: initial;
}
.GFG {
text-align: center;
font-size: 35px;
background-color: white;
padding: 20px 0;
}
</style>
</head>
<body>
<div class="main">
<div class="GFG">1</div>
<div class="GFG">2</div>
<div class="GFG">3</div>
<div class="GFG">4</div>
<div class="GFG">5</div>
</div>
</body>
</html>
Output: 
Example: In this example, we are using grid-auto-column: inherit property.
<!DOCTYPE html>
<html>
<head>
<title>
CSS grid-auto-column Property
</title>
<style>
.main {
display: grid;
grid-template-areas: "a a";
grid-gap: 20px;
padding: 30px;
background-color: green;
grid-auto-columns: inherit;
}
.GFG {
text-align: center;
font-size: 35px;
background-color: white;
padding: 20px 0;
}
</style>
</head>
<body>
<div class="main">
<div class="GFG">1</div>
<div class="GFG">2</div>
<div class="GFG">3</div>
<div class="GFG">4</div>
<div class="GFG">5</div>
</div>
</body>
</html>
Output:
Supported Browsers: The browser supported by grid-auto-columns property are listed below:
- Chrome 57.0 and above
- Edge 16.0 and above
- Firefox 70 and above
- Internet Explorer 10.0 and above
- Safari 10.1 and above
- Opera 44.0 and above