increasing Legend’s font size

In Appearance > Additional CSS, I added:

.teccc-legend {font-size:1.3em}

(and clicked Publish)

No effect

div id = legend_box class=teccc-legend
ul id = legend
li class = tribe-events-category-salsa
and for some reason also = tribe-events-cat-salsa

There is no class named “tribe-events-category”.
I would need to enter each of the categories into the additional css.
…
Okay, I did that, and it worked.
Solved, but not elegant, not efficient.
If I add new categories I will need to edit the Additional CSS again.
Is there a way to apply the style to all categories within the legend?

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