body {
    background: #f0f0f0;
}
iframe {
    border: 0;
    margin: 100px 0 0 138px;

}
.wrap {
    display: flex;
    flex-flow: column nowrap;
}
.phone {
    background: url(/img/nexus_5x_front.png) no-repeat 50%;
    width: 660px;
    height: 880px;
    margin: auto;
}