@media screen and (max-width: 639px){
.spNone {       display:none;}
.img01{ width: 100%;}
.img02{ width: 100%;} 
}
@madia screen and(min-width:640px）and (max-width:1023px)｛
/*tablet用*/
.spNone {       display:none;}
｝
@madia screen and(min-width:1024px）｛
/*PC用*/
.back { width:100%; background-image: url(../data/File_Storage/bg_004.png);background-position: center;background-size: cover;background-repeat: no-repeat;}
.img01{ width: 49%; float: left;}
.img02{ width: 49%; float: right;} 
｝