.air-box .one{
    background: url(../../images/product-details/air-box/bg12.png) center no-repeat;
    background-size: cover
}
.air-box .two{
    background: url(../../images/product-details/air-box/bg22.png) center no-repeat;
    background-size: cover;
    z-index: 10;
}
.air-box .three{
    background: url(../../images/product-details/air-box/bg32.png) center no-repeat;
    background-size: cover
}
.air-box .four{
    background: url(../../images/product-details/air-box/bg42.png) center no-repeat;
    background-size: cover
}
.air-box .five{
    background: url(../../images/product-details/air-box/bg52.png) center no-repeat;
    background-size: cover
}
.air-box .six{
    background: url(../../images/product-details/air-box/bg62.png) center no-repeat;
    background-size: cover
}
.air-box .seven{
    background: url(../../images/product-details/air-box/bg72.png) center no-repeat;
    background-size: cover
}
.air-box .eight{
    background: url(../../images/product-details/air-box/bg82.png) center no-repeat;
    background-size: cover
}
.air-box .nine{
    background: url(../../images/product-details/air-box/bg92.png) center no-repeat;
    background-size: cover
}

.air-box .six .content-box-bottom{
    color: #ffffff;
    opacity: 0.8;
}