.gd__aspect-ratio-box { position: relative; overflow: hidden; height: 0; /*padding-top: 56.25%; !* 16:9 Aspect Ratio *!*/ padding-top: 100%; /* 4:3 Aspect Ratio */ /*padding-top: 66.66%; !* 3:2 Aspect Ratio *!*/ /*padding-top: 62.5%; !* 8:5 Aspect Ratio *!*/ } .gd__aspect-ratio-box iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border-radius: 2px; } …