/* sansuke */
.sansuke #mainBox{background:#fff}
@media all and (min-width: 768px) {
.sansuke .ph1{display:block;width:910px;height:1400px;background:url(../img/sansuke/bg.jpg)  center top no-repeat;margin:0 auto;}
}
@media all and (max-width: 767px) {
.sansuke .ph1{display:block;width:100%;padding-top:154%;height:0;background:url(../img/sansuke/bg.jpg)  center top no-repeat;margin:0 auto;background-size: cover;position:relative;}
.sansuke .ph1 img{position:absolute;top:0;left:0;}
}