div#kont {
  position: relative
}

div#kont video {
  width: 100%;
}

div#kont div#ent {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 99%;
  overflow: hidden;
  background: rgba(0,0,0,0.4)
}

div#ent div#diagonal {
  width: 200%;
  height: 200%;
  position: absolute;
  left: -1500px;
  top: -1000px
}

div#diagonal div {
  border-bottom: 1px solid rgba(0,0,0,0.3);
  height: 6px;
  -webkit-transform: rotate(-45deg)
}

div#ent div#content {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  color: #fff;
  padding: 50px 100px
}