@media screen and (max-width: 900px) {
    #top-header {
      height: 50px;
    }
    .logoImg {
      display: none;
      }
    #menu-nav {
      background-color: transparent;
      box-shadow: none;
      height: 50px;
    }
    #navigation-bar ul {
      height: 50px;
    }
    #navigation-bar div {
      padding-top: 0.25px;
      height: 30px;
      width: 30px;
    }
    #navigation-bar img {
      padding-top: 0.25px;
      width: 25px;
      height: 25px;
    }
    .mapKeyText {
      max-width: 25px;
      text-align: right;
    }  
    #title-font {
      font-size: 17px;
    }

  .informationPoints {
    margin: auto;
    top: 100px;
    max-width: 70vw;
    font-size: 15px;
    height: fit-content;
    max-height: 300px;
    overflow: auto;
    bottom: 0;
  }

  .tsiyn-t-holder {
    width: 100%;
    height: auto;
  }
  .tsiyn-t-holder img{
    width: 90%;
    margin: auto;
    height: auto;
  }
  .tsiyn-t-holder {
    float: none;
  }
  .tong-jeo {
    left: 74vh;
  }
  .way-out {
    left: 90vh;
  }
  .jian-river {
    top: 2vh;
    left: 95vh;
  }
  .yan-giyoo-travel-palace {
    left: 97.5vh;
  }
  .return {
    width: 600px;
    top: 40vh;
    left: 70vh;
  }
  .date {
    width: 540px;
    top: 30vh;
    left: 87.5vh;
  }
  .mt-panlung {
    left: 117vh;
  }
  #pan-content {
    height: fit-content;
  }
  #pan-content div a {
    margin: auto;
    width: 100%;
  }
  .img-mp1,
  .img-mp2{
    width: 100%;
    height: 100%;
  }
  #panlung-content {
    width: 100%;
    height: fit-content;
  }
  .be-gian-travel-palace {
    left: 175vh;
  }

  .mt-pan {
    left: 180vh;
  }
  .yi-ci-temple {
    width: auto;
    left: 480vh;
  }
  #yi-si-content {
    height: max-content;
  }

  .wenshuan-spare-house-station {
    top: 10vh;
    left: 705vh;

  }
  .horse-change {
    top: 50vh;
    left: 710vh;

  }
  .shanhai-pass {
    left: 730vh;

  }
  #shanhai-content {
    height: max-content;
  }
  .red-wall {
    left: 760vh;
  }
  .bohai-sea {
    top: 70vh;
    left: 750vh;
  }
  .bei-jen-temple {
    height: max-content;
    top: 43vh;
    left: 1350vh;
  }
  .bjt-txt3{
    width: 100%;
  }
  .ilagri-mountain {
    left: 1375vh;
  }
  .guang-niyeng-county {
    left: 1400vh;
  }
  .tomb-of-nurhaci {
    top: 38vh;
    left: 1800vh;
  }
  .mukden-palace {
    height: max-content;
    left: 1800vh;
  }
  .img-mukenp1,
  .img-mukenp2{
    width: 100%;
    height: 100%;
  }
  .tomb-of-hong-taiji {
    top: 35vh;
    left: 1790vh;
  }
  .the-eternal-tombs {
    width: 375px;
    overflow: auto;
    left: 2150vh;
  }
  .hetu-ala {
    left: 2175vh;
  }
  .conclusion {
    top: 20vh;
    overflow: auto;
    left: 2190vh;
  }
  #conclusion-content {
    height: fit-content;
  }
}