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:
- 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.
Example 1: In this article, we are using grid-auto-columns: auto property.
HTML
<!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.
HTML
<!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.
HTML
<!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.
HTML
<!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.
HTML
<!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.
HTML
<!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