@media screen and (max-width:900px) {


  #header {
    height: 80px;
  }

  .header-logo {
    margin: 20px;
    width: 80px;
  }

  .wrapper {
    padding: 0 20px;
  }

  .hamburger-btn {
    height: 80px;
    width: 80px;
  }

  #mv {
    position: relative;
    margin-bottom: 0px;
    height: 600px;
  }

  .fade-image img {
    height: 300px;
  }

  .fade-image li {
    width: 100%;
    right: 0;
    top: 0;
    opacity: 0;
    animation: fade 15s infinite;
    /* 3枚を 15秒で1サイクル 無限ループ */
  }

  .mv-text {
    position: absolute;
    width: calc(100% - 32px);
    top: 310px;
    left: 16px;

  }

  .mv-text p {
    font-size: 1.4rem;
    font-weight: bold;
    margin-bottom: 20px;
    margin-top: 5px;
    margin-left: 20px;
  }

  .mv-btn {
    width: 95%;
    margin: auto;
    padding: 15px 20px;
    font-size: 1.2rem;
  }



  .sec-title {
    font-size: 1.5rem;
    margin-bottom: 60px;
  }

  .sec-title::after {
    content: "";
    position: absolute;
    width: 70px;
    height: 3px;
  }

  #lesson {
    margin-bottom: 80px;
    overflow: hidden;
  }

  /*スライド部---------------*/
  .bg {
    padding: 30px 0;
  }

  .slide {
    width: 90%;
  }

  .slide .title {
    font-size: 1.2rem;
  }

  .slide .text {
    font-size: 1rem;
  }

  .slide-right {
    margin-top: 30px
  }

  @keyframes slide-right {
    0% {
      transform: translateX(62%);
    }

    100% {
      opacity: 1;
      transform: translateX(12%);
    }
  }

  /*受講生の声-----------------------*/
  .item-left {
    flex-direction: column-reverse;
    text-align: center;
  }

  .item-right {
    flex-direction: column;
    text-align: center;
  }

  .student .icon {
    height: 100px;
  }

  .comment-left,
  .comment-right {
    position: relative;
    width: 100%;
    margin: auto;
    margin-bottom: 30px;
    padding: 20px;
  }

  .comment-left::after {
    width: 0px;
    left: 0;
    right: 0;
    margin: auto;
    top: 100%;
    border: 15px solid transparent;
    border-top: 15px solid #add8e6;
  }

  .comment-right::after {
    width: 0px;

    left: 0;
    right: 0;
    margin: auto;
    top: 100%;
    border: 15px solid transparent;
    border-top: 15px solid #add8e6;
  }




  /*スクール概要-------------------------*/
  #school {
    padding: 40px 0;
  }

  .school-menu li {
    width: 100%;
    padding: 20px;
  }

  .menu-ja {
    font-size: 1.3rem;

  }

  .menu-ea {
    font-size: 1rem;
    margin-bottom: 10px;
  }

  #entry h2 {
    font-size: 1.5rem;
  }

  #footer .inner {
    flex-wrap: wrap;
  }

  #footer .menu {
    width: 50%;
  }





}