.czkj-content-body {
    height: auto !important;
    padding-bottom: 120px;
    padding-top: 20px;
}
@media screen and (max-width: 640px) {
    html, body{
        overflow: auto !important;
    }
    .czkj-content-body{
        height: 100% !important;
        overflow: hidden;
        padding-bottom: 0;
        padding-top: 0;
    }
}