@media screen and (min-width: 640px){
  .music-play{
    display: none;
  }

  .history-main-img{
    width: 100%;
    height: 1800px;
    background: url(../../../new-img/pc/2017/common/back.jpg);
    position: relative;
    z-index: 1;
  }
  .side_a{
    width: 300px;
    height: 1800px;
    float: left;
    margin-top: 0px;
    background: url(../../../new-img/pc/2017/common/side_a.png);
    background-size: 40%;
    background-repeat: repeat-y;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 2;
  }
  .side_b{
    width: 300px;
    height: 1800px;
    position: absolute;
    right: 0;
    margin-top: 0px;
    background: url(../../../new-img/pc/2017/common/side_b.png);
    background-size: 50%;
    background-position: right;
    background-repeat: repeat-y;
    position: fixed;
    top: 0;
    right: 0;
    z-index: 2;
  }



  .history-content{
    position: relative;
    z-index: 100;
  }
  .title-img{
    padding-top:160px;
    display: block;
    margin: auto;
    margin-bottom: 100px;
  }

  .history-area{
    width: 820px;
    margin: auto;
  }

  .box01{
    width: 185px;
    height: 410px;
    float: left;
    margin-right: 20px;
    text-align: center;
  }
  .box01 h2{
    font-family: Times, Times New Roman, Georgia, serif;
    font-size: 30px;
    letter-spacing: 1px;
font-weight: bold;
text-align: center;
color: #7D000E;
  }

  .box01 h3{
    text-align: center;
    font-size: 15px;
    color: rgb(125, 0, 14);
    font-weight: bold;
    line-height: 23px;
  }
  .box01 p{
    text-align: center;
font-size: 11px;
color: rgb(125, 0, 14);
line-height: 17px;
  }



  .box02{
    width: 185px;
    height: 410px;
    float: left;
    margin-right: 20px;
    text-align: center;
  }
  .box02 h2{
    font-family: Times, Times New Roman, Georgia, serif;
    font-size: 30px;
    letter-spacing: 1px;
font-weight: bold;
text-align: center;
color: #7D000E;
  }

  .box02 h3{
    text-align: center;
    font-size: 15px;
    color: rgb(125, 0, 14);
    font-weight: bold;
    line-height: 23px;
  }
  .box02 p{
    text-align: center;
font-size: 11px;
color: rgb(125, 0, 14);
line-height: 17px;
  }



  .box03{
    width: 185px;
    height: 410px;
    float: left;
    margin-right: 20px;
    text-align: center;
  }
  .box03 h2{
    font-family: Times, Times New Roman, Georgia, serif;
    font-size: 30px;
    letter-spacing: 1px;
font-weight: bold;
text-align: center;
color: #7D000E;
  }

  .box03 h3{
    text-align: center;
    font-size: 15px;
    color: rgb(125, 0, 14);
    font-weight: bold;
    line-height: 23px;
  }
  .box03 p{
    text-align: center;
font-size: 11px;
color: rgb(125, 0, 14);
line-height: 17px;
  }




  .box04{
    width: 185px;
    height: 410px;
    float: left;
    margin-right: 20px;
    text-align: center;
  }
  .box04 h2{
    font-family: Times, Times New Roman, Georgia, serif;
    font-size: 30px;
    letter-spacing: 1px;
font-weight: bold;
text-align: center;
color: #7D000E;
  }

  .box04 h3{
    text-align: center;
    font-size: 15px;
    color: rgb(125, 0, 14);
    font-weight: bold;
    line-height: 23px;
  }
  .box04 p{
    text-align: center;
font-size: 11px;
color: rgb(125, 0, 14);
line-height: 17px;
  }




}