@media screen and (min-width: 541px) {
.index001 { background-image: url(../img/homepage/01_web.jpg); }
.index002 { background-image: url(../img/homepage/02_web.jpg); }
.index003 { background-image: url(../img/homepage/03_web.jpg); }
.index004 { background-image: url(../img/homepage/04_web.jpg); }
.index005 { background-image: url(../img/homepage/05_web.jpg); }
.index006 { background-image: url(../img/homepage/06_web.jpg); }
.index007 { background-image: url(../img/homepage/07_web.jpg); }
.index008 { background-image: url(../img/homepage/08_web.jpg); }
.index009 { background-image: url(../img/homepage/09_web.jpg); }
.index010 { background-image: url(../img/homepage/10_web.jpg); }
.index011 { background-image: url(../img/homepage/11_web.jpg); }
.index012 { background-image: url(../img/homepage/12_web.jpg); }
}

@media screen and (max-width: 540px) {
.index001 { background-image: url(../img/homepage/01_web.jpg); }
.index002 { background-image: url(../img/homepage/02_web.jpg); }
.index003 { background-image: url(../img/homepage/03_web.jpg); }
.index004 { background-image: url(../img/homepage/04_web.jpg); }
.index005 { background-image: url(../img/homepage/05_web.jpg); }
.index006 { background-image: url(../img/homepage/06_web.jpg); }
.index007 { background-image: url(../img/homepage/07_web.jpg); }
.index008 { background-image: url(../img/homepage/08_web.jpg); }
.index009 { background-image: url(../img/homepage/09_web.jpg); }
.index010 { background-image: url(../img/homepage/10_web.jpg); }
.index011 { background-image: url(../img/homepage/11_web.jpg); }
.index012 { background-image: url(../img/homepage/12_web.jpg); }
}