Aplicar estilo ao segundo filho div
.manufacturer_box div:nth-child(2) {
border-top: 5px solid #e0e0e0 !important;
}
Muddy Manatee
.manufacturer_box div:nth-child(2) {
border-top: 5px solid #e0e0e0 !important;
}
div:nth-child(2){
background: #05ffb0;
border: 1px solid;
padding: 5px;
}