.dyw638_img_190305{width: 1200px;margin: 0 auto;}
.dyw638_img_190305 .pc_img_190305{display: block;margin: 0 auto;width: auto;text-align: center;}
.dyw638_img_190305 .pc_img_190305 a{display: inline-block;}
.dyw638_img_190305 .pc_img_190305 img{display: block;margin: 0 auto;width:1199px}
.dyw638_img_190305 .yd_img_190305{display: none;}
@media only screen and (min-width: 240px) and (max-width: 768px) {
.dyw638_img_190305{width: 100%;}
.dyw638_img_190305 .pc_img_190305{display: none;}
.dyw638_img_190305 .yd_img_190305{display: block;margin: 0 auto;width: 100%;height: auto;}
.dyw638_img_190305 .yd_img_190305 img{display: block;width: 100%;}
}