@media (max-width:480px) {

  /* Header*/
  .header{
    background-color:#000C32;
    color:white;
    height:auto;
    display: flex;
    padding-top: 3px;
    padding-left: 5px;
  }

  .logomark img{
    width:70px;
    height:70px;
  }

  .main_title h1{
    font-family:"ヒラギノ角ゴ Pro W3";
    font-size: 18px;
    letter-spacing: 2px;
    padding-left: 10px;
  }

  .main_title a{
    text-decoration: none;
    color: #ffffff;
  }

  .main_title h3{
    padding: 0px 10px;
    font-family:"Arial";
    letter-spacing: 2px;
    font-weight: lighter;
  }

  /* Main*/
  .main {
    padding:0px 0px;
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 100%;
    background-image: url("img/ocean_bg.jpg");
  }

  .main video {
    width: 100%;
    height: 100%;
    z-index: 1;
  }

  .main h1 {
    text-align: center;
    font-family: "Hiragino Kaku Gothic ProN";
    color: #f0f8ff;
    text-shadow: 3px 2px 1px #4169e1;
    position:absolute;
    font-size: 20px;
    top: 180px;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    z-index: 3;
    max-width: 1900px;
    width: 100%;
    height: 80px;
  }
  .overview {
    width:auto;
    padding:15px 20px;
    color:#ffffff;
    background-image: url("img/ocean_bg.jpg");
  }

  .overview p{
    font-weight: bold;
  }

  .items {
    margin: 0px;
    padding:20px 0px;
  }

  .items:after {
    content: "";
    clear: both;
    display: block;
  }

  .item {
    background-color: #0a172b;
    padding:0px;
    margin:10px 20px;
    float: left;
    width:90%;
    text-align: center;
  }

  .item img{
    max-width: 100%;
    max-height: 100%;
  }

  .item h1{
    font-family:DINNextLTPro-Bold,"Helvetica Neue","Helvetica",Arial,"Roboto","Noto Sans","Segoe UI","Droid Sans","Verdana",TazuganeGothicStdN-Bold,"Noto Sans Japanese","Hiragino Sans","ヒラギノ角ゴ ProN W3","Hiragino Kaku Gothic ProN","メイリオ","Meiryo",sans-serif;
    padding-top:10px;
    font-size: 18px;
  }

  .item a{
    text-decoration: none;
  }

  .item h1:hover{
    color:#ffd700;
  }

  .item p{
    text-align: left;
    font-family:"ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "メイリオ", Meiryo, Osaka, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif;
    padding:10px 15px 0px 15px;
    color:#f5f5f5;
  }

  .clear {
    clear:left;
  }

  .parallax {
    min-height: 250px;
    background-image: url("img/Japanmap1.png");
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    padding:0px 50px;
  }

  .info_overview{
    padding:0 0 50px 20px;
    color:#E5E5E5;
    opacity: 0.8;
  }

  .info_overview h1{
    padding-bottom:20px;
  }

  .info_overview p{
    padding:5px 20px;
    border-left: solid 2px #E5E5E5;
  }

  /*footer*/
  footer {
    height:auto;
    width:100%;
    background-color:#000C32;
    color:#f5f5f5;
    font-family: "Avenir Next", "Hiragino Kaku Gothic ProN W3", sans-serif;
  }

    .footer_title {
    margin:0px 20px;
    padding-top: 10px;
    border-bottom: 1px solid white;
  }

  .footer_container {
    padding: 10px 20px;
    display: flex;
    flex-direction: column;
    width:100%;
    font-size: 14px;
  }

  .footer_address {
    display: none;
  }

  .footer_address_s {
    display: block;
  }

  .footer_content1 {
    margin:0 5px;
    padding:10px 10px;
    width:100%;
    list-style: none;
    line-height: 28px
  }

  .footer_content1 a{
    text-decoration: none;
    color: #ffffff;
  }

  .footer_content1 li:hover {
    background-color: #1e90ff;
  }

  .footer_content2 {
    margin:0 5px;
    padding:10px 10px;
    width:100%;
    list-style: none;
    line-height: 28px
  }

  .footer_content2 p{
    font-weight: bold;
  }

  .footer_content2 a{
    text-decoration: none;
    color: #ffffff;
  }

  .footer_content2 li:hover {
    background-color: #1e90ff;
  }

  .triangle{
    display:inline-flex;
    width:10px;
    height:10px;
    border-top: 5px solid transparent;
    border-right: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 5px solid #ffffff;
  }

  .twitter {
    padding-left:20px;
  }

  .twitter img{
    width:50px;
    height:auto;
  }

  .copyright {
    height:20px;
    background-color: #E5E5E5;
    font-size: 8px;
    text-align: center;
    padding:5px;
    color:#000C32;
  }

}