#eptica-iframe-content {
    position:relative; 
    height: 590px;
    width: 100%;
    margin: 0 auto; 
    padding-bottom: 2160px;
}

@media screen and (min-width: 979px) {
    #eptica-iframe-content {
        height: 590px; 
        width: 1200px; 
        padding-bottom: 1750px;
    }
}