.video-header {
    text-align: center;
    position: absolute;
    top: -34px;
    font-size: 14px;
    width: 100%;
    font-weight: bold;
    filter: drop-shadow(0px 0px 8px #ffffff);
    margin: 0;
  }

  .video-header .vh-2 {
    filter: blur(8px);
    color: #fff;
  }

  .video-header img {
    width: 20px;
    height: auto;
    transform: translate(-5px, 4px);
    display: inline;
    vertical-align: baseline;
  }

  .video-header p {
    margin: 0;
  }

  .fix_video {
    width: 10vw;
    min-width: 100px;
    height: auto;
    position: fixed;
    left: 30px;
    bottom: 20px;
    z-index: 1001;
    transform-origin: center;
    transition: all ease 0.3s;
    /* display: none; */
  }

  .fix_video_yt {
    width: 20vw;
  }

  .yt {
    position: relative;
    padding-bottom: 56.2%;
    /*アスペクト比 16:9の場合の縦幅 縦幅ここで調整*/
    height: 0;
    overflow: hidden;
    width: 100%;
    /*大きさはここで調整*/
    background-image: url("");
  }

  .yt iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
  }

  .over_txt {
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    display: none;
    justify-content: center;
    align-items: center;
    color: #fff;
    text-align: center;
    font-size: 16px;
    line-height: 1.5;
    opacity: 0;
    transition: all ease 0.3s;
    cursor: pointer;
  }

  .over_txt:hover {
    opacity: 1;
  }

  .over_txt.big {
    display: none;
  }

  .fix_video:hover {
    transform: scale(1.2);
  }

  .fix_video.big {
    width: 25vw;
    left: 50%;
    bottom: 50%;
    bottom: 50%;
    transform: translate(-50%, 50%);
  }

  .layer {
    position: fixed;
    width: 100%;
    height: 100%;
    background-color: #000;
    opacity: 0;
    pointer-events: none;
    transition: all ease 0.3s;
    top: 0;
    left: 0;
    z-index: 1000;
  }

  .layer.big {
    opacity: 0.7;
    pointer-events: initial;
  }

  .close-btn {
    width: 25px;
    height: 25px;
    position: absolute;
    top: -12px;
    right: -12px;
    background-color: #fff;
    border-radius: 100px;
    cursor: pointer;
    z-index: 1;
  }

  .close-btn img {
    object-fit: contain;
    height: 100%;
  }

  video {
    width: 100%;
    height: auto;
    transition: all ease 0.3s;
  }

  @media screen and (max-width:540px) {

    .fix_video {
      bottom: 60px;
      left: 10px;
    }

    .fix_video.big {
      width: 70vw;
    }

    .fix_video_yt {
      width: 50vw;
    }
  }