Drop Down Boxes the same size

I can't for the life of me figure out how to get the drop down boxes on the bottom portion of my form to be the same size.  If you will notice 17-18 Dental Plan (R) and 17-18 Vision Plan (R) are different widths.  

I actually duplicated the vision plan from the dental plan field but for some reason it is bigger.  I'd like the dental plan to be bigger to match the rest if possible.

Please add this custom CSS code to your form:

.form-sub-label-container {

display: block !important;

margin: 0px !important;

}

To add custom CSS code to your form, please follow this guide: https://www.jotform.com/help/117-How-to-Inject-Custom-CSS-Codes

Here's the result of my test: