.packs {
    position: relative;
    width: 100%;
    height: 100%;
}

.packs iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

@media screen and (max-width: 980px) {
	.packs iframe {
    position: relative;
    height: 900px;
	}
}