* {
    box-sizing:none;
}
.section1ot {
    width:80%;
/*    padding-bottom:50px; */
    margin:0 auto;
}
.section1la {
    width:100%;
/*    padding-bottom:50px; */
    margin:0 auto;
}
@media only screen and (max-width: 1500px) {
    .section1ot { width:100%; }
}    

@media only screen and (max-width: 1200px) {
    .section1ot { width:100%; }
}   

@media only screen and (max-width: 1100px) {
    .section1ot { width:100%; }
}    
@media only screen and (max-width: 900px) {
    .pc {display: none !important; }
    .mo {display: block !important; }
    .section1ot { width:100%; }
}   
@media only screen and (max-width: 768px) {
    .section1ot { width:100%; }
}   

@media only screen and (max-width: 600px) {
}   

@media only screen and (max-width: 500px) {
}   

@media only screen and (max-width: 400px) {
}