.wps_soundcloud_container {
    position: relative;
    padding-bottom: 56.25%;
    padding-top: 30px;
    height: 0; 
    overflow: hidden;
    margin-bottom:20px;
}
.wps_soundcloud_container iframe,
.wps_soundcloud_container object,
.wps_soundcloud_container embed {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}