Where to start with custom CSS?

[francisceril]

Hello, please spare me with this but where can I set the path for the custom CSS? I have it on the default path, css/custom.css but it seems to not work. Maybe I need to set or activate it or also maybe my selectors are wrong.

.clock .time {
   font-size: 100px; }

also

.clock .bright {
   font-size: 100px; }

Neither of those work.

Please can someone help me. Just wanted to increase the font-size of the digital time of the default clock module.
Thank you.

[lavolp3]

@francisceril you do not need to and you must not move custom.css. If above doesn’t work then your selectors are wrong. You can find out the right selector by opening the mirror in your pc browser, pressing f12 or ctrl+shift+i and using the dev tool. In the upper left corner you can choose an element picker, go to the time and find out the selector.