body {
    margin: 0;
    padding: 0;
    background-color: #fff;
}

* {
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}

#container {
    width: 100%;
}

#phone {
    width: 504px;
    height: 949px;
    position: relative;
    background: url(iPhone7.png) no-repeat top left;
    margin: 0 auto;
}

#viewport {
    width: 371px;
    height: 655px;
    position: absolute;
    top: 129px;
    left: 50%;
    margin-left: -186px;
}

#framey {
    width: 371px;
    height: 655px;
    overflow: hidden;
}