#faehnchen{
    width: 100%;
    height: 100vh;
    right: 0;
    top: 0;
    position: absolute;
}
#faehnchen .inside {
    height:100vh;
    position:relative;
}
.mail,
.facebook {
    width:40px;
    top:34%;
    position:absolute;
    right:0px;
}
.facebook {
    top:40%;
}