.mejs__postroll-layer,
.mejs-postroll-layer {
    background: rgba(50, 50, 50, 0.7);
    bottom: 0;
    height: 100%;
    left: 0;
    overflow: hidden;
    position: absolute;
    width: 100%;
    z-index: 1000;
}

.mejs__postroll-layer-content,
.mejs-postroll-layer-content {
    height: 100%;
    width: 100%;
}
.mejs__postroll-close,
.mejs-postroll-close {
    background: rgba(50, 50, 50, 0.7);
    color: #fff;
    cursor: pointer;
    padding: 4px;
    position: absolute;
    right: 0;
    top: 0;
    z-index: 100;
}