.fb-videoBlock {
    position: relative;
    height: 0;
}
.fb-videoBlock iframe{
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.fb-videoBlock {
    padding-bottom: 56.25%
}

.ccm-edit-mode-disabled-item.fb-videoBlock  {
    padding-top: 28.125%;
    padding-bottom:  28.125%
}