How can I adjust size of the font for sublabels?

how can i adjust size of the font under the boxes?

You may inject the following CSS code to the form in order to change the font size of the sub-labels.

.form-sub-label {

  font-size: 15px;

}

You can change the px value as per your requirement on the form.

Thank you! 

Huh????
i dont know how to do code.
Thank you, Debbie
CanineArthritisandJoint.com
email:caninearthritis@aol.com
...

It is easy to inject the CSS code to the form. Please copy the provided CSS code to clipboard (Ctrl+C) and paste it in the CSS section of Form Designer as shown in the screencast below:

Hope this information helps!