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A default value need not be specified; the text area box can be left empty or the placeholder attribute can be used to provide a hint to users about what to enter into the text box

A network that covers a wider area, such as several buildings or cities, is called a wide area network or WAN

HTML supports three row groups, which define rows that belong to the table head, table border, or table body

Cascading Style Sheets (CSS) 3 introduced opacity to the CSS color models where opacity defines how transparent the color appears.

An additional factor in how an element is rendered is that properties are passed from a parent element to its children in a process known as _____.

Sectioning elements are placed within grouping elements

A(n) _____ represents a single dot on an output device

A form contains _____, also called widgets, which are the objects that allow the user to interact with the form

The set of rules that define how information is passed between two devices are called protocols

Structural pseudo-elements are used to classify items based on their locations within the hierarchy of page elements