jining/src/pages/A4Scene/index.module.scss

.A4Scene {
  width: 100%;
  height: 100%;
  overflow: hidden;
  :global {
    .back {
      position: fixed;
      top: 20px;
      left: 20px;
      width: 70px;
      height: 70px;
      display: flex;
      align-items: center;
      justify-content: center;
      cursor: pointer;
      & > img {
        width: 100%;
        height: 100%;
        object-fit: cover;
      }
    }
    iframe {
      width: 100%;
      height: 100%;
      border: none;
    }
  }
}

@media screen and (max-width: 768px) {
  .A4Scene {
    :global {
      .back {
        left: 4px;
        width: 55px;
        height: 55px;
      }
    }
  }
}