#div4 {
    background-image: url(../testing-resources/images/background4.png)
}

#div5 {
    background-image: url(http://qa-artifacts.dev.unblu-test.com/testing-resources/images/background5.png)
}

#div6 {
    background-image: url(http://qa-artifacts.dev.unblu-test.com/testing-resources/images/background6.png)
}