The selected attribute is a boolean attribute. When present, it specifies that an option should be pre-selected when the page loads. The pre-selected option will be displayed first in the drop-down list. Tip: The selected attribute can also be set after the page loads, with a JavaScript.

What is attribute of an element?

An attribute is used to define the characteristics of an HTML element and is placed inside the element’s opening tag. All attributes are made up of two parts − a name and a value. The name is the property you want to set.

Which attribute is used to make a select element display as a list box?

To create a list box, use the HTML element <select> which contains two attributes Name and Size. The Name attribute is used to define the name for calling the list box, and size attribute is used to specify the numerical value that shows the how many options it contains.