ufaclub,
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
.s1 {
background-color: #1E90FF;
}
.s0 {
background-color: #3CB371;
}
.col-2 {
height: 15px;
margin: 4px;
}
</style>
<script>
document.addEventListener("DOMContentLoaded", function() {
let sort = document.querySelector(".sortx");
sort.append(...sort.querySelectorAll(".s1"))
})
</script>
</head>
<body>
<div class="row gx-2 gy-2 sortx">
<div class="col-2 s1"></div>
<div class="col-2 s0"></div>
<div class="col-2 s1"></div>
<div class="col-2 s0"></div>
<div class="col-2 s0"></div>
<div class="col-2 s1"></div>
<div class="col-2 s1"></div>
<div class="col-2 s0"></div>
</div>
</body>
</html>