/* ここから */
  .mv {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
  }

  .mv-wrap {
    position: relative;
    height: 500px;
  }

  video {
    display: block;
    width: 100%;
    height: 500px;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
  }

  .mv-bg {
    display: block;
    width: 100%;
    height: 500px;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0, 30, 0, 0.2);
    z-index: 2;
  }

  .mv-txt {
    color: #fff;
	font-size: 50px;
	font-weight: bold;
    width: 100%;
    height: 50px;
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 3;
    margin: auto;
    text-align: center;
  }