video#bgvid {
  position: relative; right: 0; bottom: 0;
  min-width: 100%; min-height: 100%;
  width: auto; height: auto; z-index: -100;
  background: url(../images/movie/wulongcha.jpg) no-repeat;
  background-size: cover;
}

.main-visual {
    height: 600px;
    background-size: cover;
    text-align: center;
    position: relative;
    overflow: hidden;
}
 
.main-visual img {
    z-index: 2;
    position: absolute;
    top: 100px;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    margin: auto;
}
 
.main-visual video {
    margin: 0 auto;
    z-index: 1;
    width: 100%;
}