.banner {
    position: fixed;
    top: 86%;
    left: -350px;
    transform: translateY(-50%);
    background: #ffffff;
    color: #000000;
    padding: 3px;
    width: 600px;
    text-align: center;
    font-family: Arial, sans-serif;
    z-index: 1000;
    transition: left 1s;
    border-radius: 5px;
  }
  .banner.show {
    left: 17%;
    transform: translate(-50%, -50%);
  }
  .banner .close {
    position: absolute;
    top: 8px;
    right: 14px;
    cursor: pointer;
  }
  .banner img {
    width: 100%;
    height: auto;
    border-radius: 5px;
  }
  @media (max-width: 600px) {
    .banner {
        width: 90%;
        left: -100%;
    }
    .banner.show {
        left: 50%;
        transform: translate(-50%, -209%);
    }
  }