Designing a form with conditionally required text input

1. How do I add text input to a form?
2. How do you show required in a form?

How do I add text input to a form?

The <input type="text"> defines a single-line text field. The default width of the text field is 20 characters. Tip: Always add the <label> tag for best accessibility practices!

How do you show required in a form?

Asterisk (*) next to a form control's label usually indicates it as "required".