Determine how many columns across you would like the viewable area. Determine how many rows down you would like the the viewable area. The user can input more data that what is seen in the viewable area. If fact, the amount of data one can input is theoretically infinite. Textarea text does not wrap by default, only when the person entering the data hits return.
Physical wrap means that returns are inserted so that all data fits in the window.
These returns are transmitted with the data. Virtual wrap means that returns are inserted so that all data fits in the window, but these returns are not transmitted with the data. You need to close the textarea tag. This is used to create lists in which the viewer can choose one or more items in the list. This is used to list the items which will appear in the menu.