.comp1_odd, .comp5_odd, .comp6_odd {
    background: #ffcccc;
}

.comp1_even, .comp5_even, .comp6_even {
    background: #ffefef;
}

.comp2_odd {
    background: #ccffcc;
}

.comp2_even {
    background: #efffef;
}

.comp3_odd, .comp4_odd, .comp8_odd {
    background: #ccccff;
}

.comp3_even, .comp4_even, .comp8_even {
    background: #efefff;
}

.comp11_odd {
    background: #ffffcc;
}

.comp11_even {
    background: #ffffef;
}