.header-background{
    background-image: url(/img/background.jpg);
    padding: 50px 0 150px 0;
    width: 100%;
    height: 400px;
    top: 0;
    left: 0;
    z-index: -1;
    background-repeat: no-repeat;
    background-position: center center;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}

.content_center{
    max-width:1000px;
    margin:auto;
}

.content_center img {
    max-width:100%;
}

.content_center h1 {
    text-align:center;
}