Playground CSS glitch

Question

Custom CSS doesn't work in the Playground... what am I doing wrong?! I can't learn with this! Even when I know I do the code right my custom CSS doesn't work; only the default CSS works. See
https://code.sololearn.com/W88uO3g0ErWq/?ref=app
For more info.

Answer 1

Thx, can delete that old post now

Answer 2

what do I click? sorry, I'm a novie

Answer 3

*** novice

Answer 4

Three dots next to post, then delete

Answer 5

Thx.

Answer 6

You have to use text-weight property.
Like this:
https://code.sololearn.com/WmL4pYjBEx13/?ref=app

Answer 7

Oh.... thanks! Will fix it now

Answer 8

You'r welcome