Graphing Dropdown centering

[alxkp]

Describe the bug
Once the dropdowns get modified at all, they are off-center in the box

To Reproduce

1. Upload data via the data loading screen
2. Go to the graphing screen and click display graph
3. Click on any dropdown

Expected behavior
The dropdown should return to the same centered appearance as before

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: MacOS
• Browser: Safari, Firefox, and Chrome

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
I think that this might be solvable by using a styling override, but changing a few of the styling elements like padding doesn't seem to have any effect on the centering.