#actions /* 0,1,0,0 */
.words /* 0,0,1,0 */
Hints:
Hint 1:
It's a coding language.
Hint 2:
The two lines are snippets that won't work on their own.
Hint 3:
It's a stylesheet language.
Hint 4:
It's CSS.
Hint 5:
It relates to an aspect of CSS which many people find confusing.
Hint 6:
The numbers in the comments are there to help you, but they merely make other stuff more obvious.
Hint 7:
Why was the BEM naming convention created?
Hint 8:
It's about specificity.