harella1/video.js

.vjs-poster {
  display: inline-block;
  vertical-align: middle;
  background-repeat: no-repeat;
  background-position: 50% 50%;
  background-size: contain;
  background-color: #000000;
  cursor: pointer;
  margin: 0;
  padding: 0;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  height: 100%;
}

// Used for IE8 fallback
.vjs-poster img {
  display: block;
  vertical-align: middle;
  margin: 0 auto;
  max-height: 100%;
  padding: 0;
  width: 100%;
}

// Hide the poster after the video has started playing
.vjs-has-started .vjs-poster {
  display: none;
}

// Don't hide the poster if we're playing audio
.vjs-audio.vjs-has-started .vjs-poster {
  display: block;
}

// Hide the poster when controls are disabled because it's clickable
// and the native poster can take over
.vjs-controls-disabled .vjs-poster {
  display: none;
}

// Hide the poster when native controls are used otherwise it covers them
.vjs-using-native-controls .vjs-poster {
  display: none;
}