CSS Grid Layout - grid-template-columns Example

<!DOCTYPE html>
<html>
<head>
<style>
/*
============== grid-template-columns ==============
*/
.grid-container {
    display: grid;
    grid-template-columns: 20% 60% 20%;
    grid-template-rows: auto auto;
    padding-right: 10px;
    grid-gap: 5px;
    background: #333;
}
.grid-item {
    position: relative;
    background: #97ff99;
    border: 1px solid #333;
    text-align: center;
    padding: 10px;
    height: 50px;
    line-height: 50px;
}
/*
============== grid-template-columns ==============
*/
</style>
</head>
<body>
<h1 class="heading">grid-template-columns</h1>

<p class="description">We can decide the width of the columns using the <code>grid-template-columns</code> CSS property.</p>

<div class="grid-container">
	<div class="grid-item">1</div>
	<div class="grid-item">2</div>
	<div class="grid-item">3</div>
	<div class="grid-item">4</div>
	<div class="grid-item">5</div>
	<div class="grid-item">6</div>
</div>

</body>
</html>