If you are working on asp.net mvc and you got the scenario to make Multiline text box, where user can enter the long text.
Then you can do like this
Step 1 : Take the @html.TextAreaFor html helper
Step 2: Increase the height and weight of TextArea like this
@Html.TextAreaFor(model => model.Answer,5, 55, null)
Note : Here Model.Answer is the part of my model class.