CSS issues for field label

I’m trying to change the field label text style (change font weight so it isn’t bold) but nothing I do in CSS seems to work. I can get it to change using the Inspect Developer tool in Chrome, but it isn’t working once I put the CSS in the styles.css file:

.gform_wrapper label.gfield_label, .gform_wrapper legend.gfield_label {
    font-weight: 100; 
}

Can you share the URL to the page on your site where we can see the form and your CSS being applied?

font-weight: 100; is really light. Have you tried it with keywords (like normal) or numeric like 400? Anything other than 400 and 700 must have built in typefaces to match those weights.

I’m having the exact same problem. It seems any custom CSS doesn’t get accepted for the field label classes.

Did you find a solution?