The input field values are not visible in Firefox

When I type my name, email etc into the form here: http://www.jbmediagroupllc.com/sweepstakes/ he text I am typing is not visible on Firefox for the MAC. On Safari and Chrome the form works perfectly but the text you are typing can not be seen on Firefox. Any suggestions?  

Actually, the problem happens on Firefox regardless of the OS. The texts are not shown due to the padding and height of the textboxes. To fix this, inject the following CSS codes to your Form Builder:

.form-textbox {

  min-height: 36px !important;

  padding: 0 !important;

}

Complete guide: How-to-Inject-Custom-CSS-Codes