How to shrink width of label through CSS?

I have a drop-down with state abbrevs and want to shrink the label width so the spacing on the form looks good. The drop-down portion looks fine, but the label portion of the control takes up too much space.

I have this working for one control, but wanted to copy it and when I do with width defaults back to the default. I tried doing the same type of custom CSS code, but it isn't working.

Any ideas?

As usual, you have the answer! Thanks much.

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