@media only screen and (max-width: 767px){
.search-form-kienthuc form input::-webkit-input-placeholder{
    font-size: 12px;
}
.search-form-kienthuc form input::-moz-placeholder{
    font-size: 12px;
}
.search-form-kienthuc form input:-ms-input-placeholder{
    font-size: 12px;
}
.search-form-kienthuc form input::-ms-input-placeholder{
    font-size: 12px;
}
.search-form-kienthuc form input::placeholder{
    font-size: 12px;
}
} 

.catalog .inner {
    flex-direction: row !important;
}

.catalog .item[role="item-noncol"] {
    width: 300px;
}