#cooling {
    background: url(../images/cooling_1920.jpg) center 0px no-repeat;
    height: 940px;
    overflow-y: hidden;
}

#cooling .frame {
    width: 1100px;
    margin: 0 auto;
    padding-top: 90px;
}

#cooling_laptop {
    background: url(../images/cooling_laptop.png) 0 0 no-repeat;
    width: 1239px;
    height: 745px;
    position: relative;
    margin: 0 auto;
}

#cooling_fan {
    background: url(../images/cooling_fan_1920.png) 0 0 no-repeat;
    width: 1080px;
    height: 357px;
    position: absolute;
    left: 73px;
    top: 183px;
}

.cooling_step2_arr1,
.cooling_step2_arr2,
.cooling_step3a_arr,
.cooling_step3b_arr,
.cooling_step3c_arr,
.cooling_step3d_arr {
    background: url(../images/cooling_arr.png) 0 0 no-repeat;
    width: 107px;
    height: 170px;
}

.cooling_step3a_arr {
    transform: rotate(90deg);
}

.cooling_step3b_arr {
    transform: rotate(-90deg);
}

.cooling_step3c_arr,
.cooling_step3d_arr {
    transform: rotate(180deg);
}

.cooling_step2_arr1 {
    position: absolute;
    left: 0;
    top: 0;
}

.cooling_step2_arr2 {
    position: absolute;
    left: 727px;
    top: 0;
}

#cooling_step2 {
    position: absolute;
    left: 196px;
    top: 35px;
}

#cooling_step3 {
    position: absolute;
    left: 612px;
    top: 313px;
}

.cooling_step3a {
    position: absolute;
    top: -80px;
    right: 459px;
    width: 200px;
    height: 170px;
    overflow: hidden;
}

.cooling_step3a .cooling_step3a_arr {
    position: absolute;
    right: 0;
    top: 0;
}

.cooling_step3b {
    position: absolute;
    top: -80px;
    left: 460px;
    width: 200px;
    height: 170px;
    overflow: hidden;
}

.cooling_step3b .cooling_step3b_arr {
    position: absolute;
    left: 0;
    top: 0;
}

.cooling_step3c {
    position: absolute;
    top: -468px;
    left: -419px;
    width: 200px;
    height: 170px;
    overflow: hidden;
}

.cooling_step3c .cooling_step3c_arr {
    position: absolute;
    left: 0;
    bottom: 0;
}

.cooling_step3d {
    position: absolute;
    top: -468px;
    left: 308px;
    width: 200px;
    height: 170px;
    overflow: hidden;
}

.cooling_step3d .cooling_step3d_arr {
    position: absolute;
    left: 0;
    bottom: 0;
}

@media screen and (max-width: 1366px) {
    #cooling {
        background: url(../images/cooling_1366.jpg) center 0px no-repeat;
        height: 708px;
    }
    #cooling .frame {
        width: 830px;
        padding-top: 64px;
    }
    #cooling_laptop {
        transform: scale(0.7) translateX(65px);
        transform-origin: left top;
    }
}

@media screen and (max-width: 960px) {
    #cooling {
        background: url(../images/cooling_960.jpg) center 0px no-repeat;
        height: 708px;
    }
    #cooling .frame {
        width: 570px;
        padding-top: 74px;
    }
    #cooling_laptop {
        transform: scale(0.46) translateX(65px);
    }
}

@media screen and (max-width: 640px) {
    #cooling {
        background: url(../images/cooling_640.jpg) center 0px no-repeat;
        height: 628px;
    }
    #cooling .frame {
        width: auto;
        padding-top: 60px;
    }
    #cooling_laptop {
        transform: scale(0.23) translateX(65px);
    }
}