How to center a div without using flex or grid ?
<html lang="en">
<head>
<style>
html, body{
margin: 0;
width: 100%;
height: 100%;
display: table;
text-align: center;
}
.container{
display: table-cell;
vertical-align: middle;
}
</style>
</head>
<body>
<div class="container">
div
</div>
</body>
</html>