* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  body {
    background-color: black;
    font-family: Arial, sans-serif;
    color: #fff;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  ::-webkit-scrollbar {
    display: none;
  }
  
  .video-player {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 50px;
  }
  
  .video-container {
    width: 100%;
    margin-bottom: 7px;
  }
  
  iframe {
    width: 100%;
    height: 450px;
  }
  
  .thumbnail-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    width: 66.6%;
    margin-bottom: 20px;
  }
  
  .thumbnail {
    width: 100%;
  }
  
  .thumbnail img {
    width: 100%;
  }
  .footer {
    text-align: center;
    margin-top: 20px;
    margin-bottom: 20px;
  }
  
  .footer-item {
    font-size: 1.5em;
    color: #fff;
    cursor: pointer;
  }
  
  .footer-item:hover {
    color: #ccc;
    opacity: 0.5;
    transition: 0.3s;
  }
  .title {
    display: flex;
    justify-content: space-around;
    margin-bottom: 10px;
  }
  .video {
    margin-right: 60px;
  }
  a {
    text-decoration: none;
    color: #fff;
  }
  
  @media (max-width: 720px) {
    .thumbnail-container {
      display: grid;
      grid-template-columns: 1fr;
    }
    .thumbnail-container {
      width: 100%;
      padding: 10px;
      margin-top: -80px;
    }
    .video-container {
      margin-bottom: 0;
      padding: 10px;
      display: inline;
      align-items: self-start;
      justify-content: start;
    }
    .video {
      margin-right: 900px;
    }
    .title {
      font-size: 0.7em;
      padding: 0;
    }
  
    iframe {
      margin-top: -120px;
      padding: 0;
    }
  }