W3Schools Tryit Editor

<!DOCTYPE html>
<html>
<head>
<style>
.grid-container {
  display: grid;
  grid-template-columns: auto auto auto auto;
  gap: 10px;
  background-color: #2196F3;
  padding: 10px;
}

.grid-container > div {
  background-color: rgba(255, 255, 255, 0.8);
  text-align: center;
  padding: 20px 0;
  font-size: 30px;
}
</style>
</head>
<body>

<h1>Change gap with JavaScript</h1>

<p>Click the button to change the gap between the rows, and the gap between the columns:</p>
<p><button onclick="myFunction()">Create a big gap</button></p>

</body>

</html>