<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="./css/stylescss" />
<title>My Site</title>
</head>
<body>
<div class="wrapper">
*content*
</div>
</body>
<html>.wrapper{
max-width: 1200px;
margin: 0px auto;
padding: 0 15px;
}
@media (max-width:1200px){
.wrapper {
max-width: 970px;
}
}
@media (max-width: 992px){
.wrapper {
max-width: 750px;
}
}
@media (max-width: 767px){
.wrapper {
max-width: none;
}
}