#gform_next_button_3{
font-size: 16px !important;
  background: green;
  border-radius: 30px;
   padding-left: 30px;
  padding-right: 30px;
}

#gform_previous_button{
font-size: 16px;
  background: green;
  border-radius: 30px;
   padding-left: 30px;
  padding-right: 30px;
}