css grid auto rows
<!DOCTYPE html>
<html>
<head>
<style>
.grid-container{
display: grid;
grid-template-columns: auto auto auto;
grid-template-rows: auto;
grid-auto-rows: 150px 200px;
grid-row-gap: 15px;
grid-column-gap: 15px;
padding: 15px;
background: tomato;
}
.grid-item{
text-align: center;
line-height: 100px;
font-size: 25px;
background: white;
}
</style>
</head>
<body>
<h1>CSS grid-auto-rows Property</h1>
<h2>grid-auto-rows: 150px 200px;</h2>
<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 class="grid-item">7</div>
<div class="grid-item">8</div>
<div class="grid-item">9</div>
</div>
<p style="background:yellow;margin-bottom: 30px;"><b>Note: </b>Notice that only the second and the third row are affected by the grid-auto-rows property. This is because they are created implicitly.</p>
</body>
</html>