* {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }

    body {
      width: 100vw;
      height: 100vh;
      overflow: hidden;
      background: #1a1a1a;
    }

    .container {
      width: 100%;
      height: 100%;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    iframe {
      width: 100%;
      height: 100%;
      border: none;
    }