.the_content {
    margin-bottom: 50px;
}
.video {
    height: 0;
    position: relative;
    padding-bottom: 56.25%;
    margin-bottom: 100px;
}
.video iframe {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
}

.izobrazhenie {
    margin-bottom: 50px;
}