.head_top {
     width:100%;
     height:500px;
     background: url(../images/banner1.png);
     background-size: cover;
     background-repeat: no-repeat;
     background-position: center;
}

.producer{
     width:100%;
     border-top: solid 1px #d3d3d3;
     border-bottom: solid 1px #d3d3d3;
}

.producer_box{
     max-width:800px;
     width:100%;
     margin:100px auto;

     font-size:18px;
     color:#0f2350;
     line-height:30px;
}

/* 画面幅599px以下　スマートフォン*/
@media screen and (max-width: 599px) {

     .producer_box{
          width:90%;
     }


}