.block-video {
  position: relative;
  max-height: calc(85vh - 60px);
  overflow: hidden;
}

.block-video:before {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 50%;
  z-index: 5;
  background: linear-gradient(0deg, transparent 50%, rgba(0, 0, 0, 0.5));
}

.block-video:after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0px;
  width: 100%;
  height: 50%;
  z-index: 5;
  background: linear-gradient(180deg, transparent 50%, rgba(0, 0, 0, 0.5));
}

.block-video video {
  width: 100%;
  height: auto;
  position: relative;
  z-index: 1;
  display: block;
}

.block-video .overlay {
  position: absolute;
  bottom: 30px;
  left: 0;
  width: 100%;
  z-index: 10;
}
.block-video .overlay h1 {
  color: #ffffff;
}

@media (max-width: 768px) {
  .block-video video {
    width: auto;
    height: 60vh;
    margin-left: -60%;
  }
  .block-video .overlay {
    bottom: 20px;
  }
  .block-video .overlay h1 {
    font-size: 2em;
  }
  .block-video .entry-content .alignfull {
    width: auto;
    padding: 0 24px;
  }
}