body{
    background: url(images/background_.jpg) no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}
.content{
    position: relative;
    padding-top: 22%;
}
.contact{
    margin-top: 35px;
}
.content img{
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 50%;
}
@media screen and (min-width: 601px) {
    .contact{
        font-size: 35px;
    }
}

@media screen and (max-width: 600px) {
    .contact{
        font-size: 20px;
    }
    .content img{
        width: 75%!important;
    }
    .content{
        padding-top: 35%;
    }
}