<html>
<head>
<style>
body {
padding: 0;
margin: 0;
}
.row {
display: flex;
flex-wrap: wrap;
padding: 0 0px;
max-width: 100%;
}
/* Create four equal columns that sits next to each other */
.column {
flex: 25%;
max-width: 25%;
padding: 0 0px;
}
.column img {
width: 100%;
vertical-align: middle;
}
/* Responsive layout - makes a two column-layout instead of four columns */
@media screen and (max-width: 800px) {
.column {
flex: 50%;
max-width: 50%;
}
}
/* Responsive layout - makes the two columns stack on top of each other instead of next to each other */
@media screen and (max-width: 600px) {
.column {
flex: 100%;
max-width: 100%;
}
}
</style>
</head>
<body>
<form method="POST">
<button type="submit">Do a POST request and see what happends</button>
</form>
</body>
<script>
</script>
</html>