List box

A list box is a graphical control element that allows the user to select one or more items from a list contained within a static, multiple line text box. The user clicks inside the box on an item to select it, sometimes in combination with the Shift or Ctrl in order to make multiple selections. "Control-clicking" an item that has already been selected, unselects it.

A list box is called  or   in the XForms standard. Select is used for allowing the user to select many items from a list whereas  only allows the user to select a single item from a list.

HTML
In web forms, the HTML elements and  are used to display a listbox: