.phone_frame {
    position: fixed;
    left:50%;
    top:50%;
    margin-top:-340px;
    margin-left:-190px;
    width:380px;
    height:680px;
    border-radius: 22px;
    border:7px solid #170919;
    box-shadow: 0px 0px 20px 15px rgba(255,255,255,0.1);
    overflow: hidden;
}

body {
    background-image: url("/images/back2.png");
    background-position: center center;
    background-size: cover;
}