main.htbvideos .card {
    display: flex;
    justify-content: center;
    align-items: center;
  }

  /* 기본: 800px 이하 → 폭 100% */
  main.htbvideos .video {
    width: 100%;
    height: auto;
    background-color: #000;
  }

  /* 800px 이상 → 폭 800px */
  @media (min-width: 800px) {
    main.htbvideos .video {
      width: 800px;
    }
  }

  main.htbvideos .htbtext {
    font-weight: bold;
    margin: 8px 0;
    font-size: 32px;
    color: black; 
    text-align: center;
  }