@media (max-width: 992px) {
    .box:nth-child(2n-2) {
    clear: both;
}  
}
@media (min-width: 993px) {
    .box:nth-child(4n-2) {
    clear: both;
}  
}



@media (max-width: 992px) {
    .cat:nth-child(2n+1) {
    clear: both;
}  
}
@media (min-width: 993px) {
    .cat:nth-child(4n+3) {
    clear: both;
}  
}