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 or in order to make multiple selections. "Control-clicking" an item that has already been selected, unselects it.
A list box is called <code>select</code> or <code>select1</code> in the XForms standard. Select is used for allowing the user to select many items from a list whereas <code>select1</code> only allows the user to select a single item from a list.
In web forms, the HTML elements and are used to display a listbox: