Edit in JSFiddle

<div class="wrapper-parallax">
    <header>
        <h1>Header</h1>
    </header>

    <div class="content">
        <h1>Content</h1>
    </div>

    <footer>
        <h1>Footer</h1>
    </footer>
</div>

body {
    margin: 0;
}

header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: -1;
    height: 100px;
    background: cyan;
}
.wrapper-parallax {
    margin-top: 100px;
    margin-bottom: 60px;
}
.content {
    position: relative;
    z-index: 1;
    border-top: 1px solid black;
    border-bottom: 1px solid black; 
    background: white;
    min-height: 500px;
}
footer {
    width: 100%;
    position: fixed;
    z-index: -1;
    bottom: 0;
    background: green;
    height: 60px;
}