<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Your page title</title>
<link rel="stylesheet" href="unpkg.com/purecss@1.0.1/build/pure-min.css">
<link rel="stylesheet" href="grid.css">
<link rel="stylesheet" href="unpkg.com/purecss@1.0.1/build/grids-responsive-min.css" />
</head>
<body>
<div class="pure-g">
<div class="pure-u-sm-1-1 pure-lg-1-7 ">First Unit</div>
<div class="pure-u-sm-1-1 pure-lg-1-7 ">First Unit</div>
<div class="pure-u-sm-1-1 pure-lg-1-7 ">First Unit</div>
<div class="pure-u-sm-1-1 pure-lg-1-7 ">First Unit</div>
<div class="pure-u-sm-1-1 pure-lg-1-7">First Unit</div>
<div class="pure-u-sm-1-1 pure-lg-1-7 ">First Unit</div>
<div class="pure-u-sm-1-1 pure-lg-1-7 ">First Unit</div>
</div>
</body>
</html>
I want a 7 column grid. I can achieve that with Purecss "pure-u-1-7". But when combined with sm,md,lg,xl its not working. Its becoming as one column. I want a 7 column, when its viewed on small device it should become single column. Like this "pure-u-1-7 Pure-u-sm-1-1"