I would like to make the fields a little wider - like they are in the demo. How would I go about doing that?
You can change the width of fields in the module.css file that is located here - <%PATH%>/DesktopModules/CodingStaff.ContactUs/module.css (line 89)
.cs-contactUs .cs-button-position, .cs-contactUs .cs-field-mail input, .cs-contactUs .cs-field-name input, .cs-contactUs .cs-field-subject input, .cs-contactUs .cs-message-block textarea, .cs-contactUs .cs-department select, .cs-contactUs .cs-button {
width: 300px; /*you need to change this parameter*/
}