.filter{
    overflow: auto;
    zoom: 1;
}

.product_item{
    text-align: center;
    margin-top: 30px;
}
.product_item>div {
    margin: 0 15px;
}
.product_item img{
    width: 100%;
    height: 160px;
}
@media (max-width: 768px) {
    .product_item img{
        height: 89px;
    }
}