It's recommended to use the same look and feel as other Opinio screens. Here are some main classes used in html forms:
tables - use "table" class "sectionTable" for the main form table
heading - use "td" class "sectionTitle" for the main heading
Label cell - use "td" class "form label" for text labels (label before the input fields)
Input field/value cell - use "td" class "value" for cells with inputs, like text field, textarea, checkbox, etc
Input field/Textarea - use "input" class "width100"/"width200"/"width300". To highlight the error field, add class "error". For example "width200 error"
Checkbox - use "input" class "checkbox"
Radio - use "input" class "radio"
Buttons cell - use "td" class "buttons"
Button - use "input" class "button"