CSS hacks for the dumb? - #3 by andfanilo : you can use your devtools inspector tab to find the correct class. CSS Classes change every now and then between versions and it’s not something we are really supposed to play with so there’s no documentation on it
Also this should work: Can I change the color of the selectbox widget? - #2 by andfanilo
Sry I don’t have a Streamlit running to test so hope this will work 
Have a nice day,
Fanilo
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