How can I change the font size on a form field?

@rcsfonseca You can change the font sizes on forms using Custom CSS. You can decide on the font size of names, descriptions and field contents by changing the values below:

/***************************************
Styling changes to Form
***************************************/
.form-wrapper .field-list {
 .title {
   /* Title of field (eg Name, Subject, Message) */
   font-size: 18pt;
 }
 .description {
   /* Description */
   font-size: 26pt;
 }
 .field {
   .caption {
     /* Captions of fields (eg First Name, Last Name) */
     font-size: 16pt;
     .field-element {
       /* Text in the field boxes (First Name, Last Name) */
       font-size: 28pt;
     }
   }
   .field-element {
     /* Text in the field boxes (inc placeholder text) */
     font-size: 20pt;
     /* Shading colour of all boxes */
     background: #F9FFE5;
   }
 }  
}

Checkboxes are field options. You can change them with something like this:

.form-wrapper .field-list .field .option {
   font-size: 16px;
}

This is so great!

which part of this would control the "answer" text in a form field question? For example, choosing "yes" or "no" in a multiple choice question - the answers themselves, i.e. "yes" and "no" are still in a tiny font. I have been unsuccessful in changing them using this code and am probably missing something.

You can see an example here:http://www.highcountrycaregiverfoundation.org/program-events/day-break-tues-9-6-2016

Very novice user here. Do I repeat this code for each title of field and captions of field?

If you only want to change the color of the Form Block fields, you can use this code instead:

 form {}
form input[type="text"],
form textarea {
  color: black !important;
  }