<!DOCTYPE html>
<html lang="ru">
<head>
<title>Испытание: строим сетку</title>
<meta charset="utf-8">
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="header">
<div class="padding-top-left layout-pasitioner header-layout-colum-1">
Header
</div>
<div class="header-layout-colum-2">
<div class="padding-top-left layout-pasitioner">
Menu
</div>
</div>
<div class="promo">
<div class="padding-top-left header-layout-colum-3">
Promo 1
</div>
<div class="padding-top-left header-layout-colum-4">
Promo 2
</div>
</div>
</div>
<div class="content">
<div class="main">
<div class="content-layout-colum-1 padding-top-left">
Left
</div>
<div class="content-layout-colum-2 padding-top-left">
Main
</div>
<div class="content-layout-colum-3 padding-top-left">
Right
</div>
</div>
</div>
<div>
<div class="footer">
<div class="padding-top-left layout-pasitioner">
Footer
</div>
</div>
</div>
</body>
</html>