html{
  width: 100%;
  height: 100%;
  font-family:Arial, Helvetica, sans-serif;
}

body{
    background-color: #fff5d0;
    display: -webkit-box;
    display: flex;
    justify-content:space-between;
    align-items: center;
    flex-direction: column;
    height: 100%;
    margin: auto;
  }

  #main{
    display: -webkit-box;
    display: flex;
    flex-direction: column;

  }
  
  #lang_menu{
    display: -webkit-box;
    display:flex;
    align-items: center;
    top:32px;
    border-radius: 50%;
    margin: 20px auto 0;
  }
  #lang_menu a{
    text-decoration: none;
    font-size: 20px;
    padding:8px 40px;
    margin: 0 10px;
    background-color: #FBD89F;
    font-weight: bold;
    color: #d1a669;
    box-shadow: 0 5px #cea66f;
    border-radius: 40px;
  }
  #lang_menu a:hover{
    background-color:#ffe2b5;
  }
  #lang_menu a:active{
    box-shadow: none;
    position: relative;
    top:5px;
  }

  #lang_menu .jp{
    pointer-events: none;
    box-shadow: none;
    position: relative;
    top: 5px;
  }

  #container{
    width: 100%;
    height: 100%;
    min-width: 600px;
    min-height: 420px;
    max-width: 600px;
    max-height: 420px;
    margin: 20px 0;
  }
  
  #inner_container{
    height: 100%;
    width: 100%;
    float: left;
    background: url(images/jap_00.png);
    background-size: contain;
  }img{
    width: 100%;
    height: 100%;  
  }
  
  #button_container{
    width: 100%;
    margin: 0 auto;
    display: flex;
  }

  button{
    width: 70%;
    min-width: 480px;
    height: 60px;
    background: none;
    color: inherit;
    border: none;
    padding: 0;
    font: inherit;
    cursor: pointer;
    outline: inherit;
    margin: 0 auto 40px;
    background-color: #FFBA40;
    border-radius: 40px;
    font-size: 24px;
    font-weight: bold;
    color: #fff;
    letter-spacing:2px;
    box-shadow: 0 10px #be9459;
  }
  button:hover{
    background-color: #ffc640;
  }
  button:active{
    box-shadow: none;
    position: relative;
    top:10px;
  }

  #footer{
    display: -webkit-box;
    width: 100vw;
    display: flex;
    flex-direction: column;
  }

  #grass{
    width: 100%;
    height: auto;
    display: block;
  }
  .spweb{
    display:none;
  }

  #SNS{
    background-color: #8E6F43;
    height: 60px;
    width: 100%;
  }
  #SNS .container{
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
  }
  #SNS .container a{
    width:32px;
    height: 32px;
  }
  #SNS p{
    font-size: 12px;
    width: 180px;
    color: #FBD89F;
    margin-left: 8px;
    letter-spacing: 1px;
  }

@media screen and (max-width: 768px) {
  #container{
    width: 100vw;
    height: 71vw;
    min-width: 250px;
    min-height: 175px;
    margin: 12px 0 12px;
  }

  #lang_menu{
    margin:0 auto;
  }

  #lang_menu a{
    font-size: 16px;
    padding: 6px 24px;
  }

  #button_container{
    /* width: 70vw; */
    max-width: 280px;
  }

  button{
    height: 48px;
    font-size: 20px;
    box-shadow: 0 7px #be9459;
    min-width: 280px;
    margin:0;
  }:active{
    top: 7px;
  }

  .spweb{
    display:block;
  }

  .pc{
    display: none;
  }

  #inner_container img{
    height: auto;
  }
}