By adding a classname to the dialog, I will be able to target dialog classes. ```css .dialog-datetime-picker { .v-tabs-slider { background-color: red; } } ``` Before: <img width="344" alt="Screen Shot 2020-12-09 at 11 17 43 AM" src="https://user-images.githubusercontent.com/819940/101655954-2df74680-3a10-11eb-8e20-cff13e69ee77.png"> After: <img width="356" alt="Screen Shot 2020-12-09 at 11 14 54 AM" src="https://user-images.githubusercontent.com/819940/101655890-1ddf6700-3a10-11eb-8b2d-23b983560db7.png">