<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.pg-header{
height: 48px;
background-color: #1d9ad6;
color: white;
}
.pg-content{}
.pg-footer{}
.pg-content .menu{
20%;
background-color: red;
min- 200px;
height: 700px;
}
.pg-content .content{
80%;
background-color: green;
min- 200px;
}
.left{
float:left;
}
.right{
float: right;
}
</style>
</head>
<body style="margin: 0">
<div class="pg-header"></div>
<div class="pg-content">
<div class="menu left">asd</div>
<div class="content left">
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</div>
</div>
<div class="pg-footer"></div>
</body>
</html>