Required fields
- Remeber that filling out a contact form is not a task to dream about. Narrow a number of optional fields to a minimum (close to 0).
- It is an excellent practice to connect the required field indicators with a label. It is excellent both from the viewpoint of semantics and accessibility.
Field width
- Field length may add comfortability to the form completion process.
- Field length should be enough for entered information
Incorrectly sized fields make the process uncomfortable.