grid-row-gap.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .grid-container {
  /*Appyliing Grid property*/
  display: grid;
  grid-template-columns:auto auto auto;
  background-color: #47da29;
  padding: 10px;
  /*Applying column gap for each column*/
  row-gap: 50px;
        }
.grid-item {
  padding: 20px;
  font-size: 30px;
  text-align: center;
  border: 1px solid black;
 
}
    </style>
</head>
<body>
    <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>
</body>
</html>