#thunderbolt {
    background: url("../images/thunderbolt_1920.jpg") center 30px no-repeat;
    height: 776px;
}

#thunderbolt .frame {
    padding-top: 120px;
    margin: 0 auto;
    width: 1105px;
}

@media screen and (max-width: 1366px) {
    #thunderbolt {
        background: url("../images/thunderbolt_1366.jpg") center 60px no-repeat;
        height: 596px;
    }
    #thunderbolt .frame {
        padding-top: 90px;
        width: 730px;
    }
}

@media screen and (max-width: 960px) {
    #thunderbolt {
        background: url("../images/thunderbolt_960.jpg") center 0 no-repeat;
        height: 607px;
    }
    #thunderbolt .frame {
        padding-top: 93px;
        width: 580px;
    }
    #thunderbolt h2 {
        width: 400px;
    }
}

@media screen and (max-width: 640px) {
    #thunderbolt {
        background: url(../images/thunderbolt_640.jpg) center 0 no-repeat;
        height: 653px;
    }
    #thunderbolt .frame {
        padding-top: 54px;
        width: auto;
    }
    #thunderbolt h2 {
        width: auto;
    }
}