<body>
    <div class="wrap">
        <header>
            <div class="container">

            </div>
        </header>
        <section class="buy">
            
        </section>
    </div>
</body>
body{
    min-width: 1600px;
    /* background: url(../img/preview.jpg) no-repeat center top; */

}

header{
    height: 950px;;
    background: url(https://pp.userapi.com/c846521/v846521463/1972a6/4iV2zUSR03Y.jpg) no-repeat center;
    background-size: cover;
    position: relative;
}

.buy{
    background: url(https://pp.userapi.com/c846521/v846521463/1972b0/N7QmZhFbDtk.jpg) no-repeat center  -200px;
    background-size: cover;
    height: 1210px;
}

External CSS

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External JavaScript

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