Hi wazekbusiness ,
It is possible to override the classes by making sure you're matching the exact classes and adding a :not(#\ ) to it (to give it a higher priority):
:not(#\ ):not(#\ ):not(#\ ).buttonizer .buttonizer-label {
    right: 60px !important;
    height: 60px !important;
    line-height: 60px !important;
}
Let me know if this helps 🙂