.app-control1 .one{
    background: url(../../images/product-details/app-control1/bg12.png) center no-repeat;
    background-size: cover
}
.app-control1 .two{
    background: url(../../images/product-details/app-control1/bg22.png) center no-repeat;
    background-size: cover;
    z-index: 10;
}
.app-control1 .three{
    background: url(../../images/product-details/app-control1/bg32_v1.png) center no-repeat;
    background-size: cover
}
.app-control1 .four{
    background: url(../../images/product-details/app-control1/bg42.png) center no-repeat;
    background-size: cover
}

.app-control1 .product-parameters-img{
    padding: 0.5rem;
    border-bottom: 1px solid #B2B2B2;
    margin-bottom: 0.5rem;
}
.app-control1 .product-parameters-img h5{
    margin-bottom: 0.5rem;
}
.app-control1 .product-parameters-img img{
    margin: auto;
}
.product-parameters > .row{
    padding-top: 0!important;
}