Every HTML element has a default display value, depending on what type of element it is.
The two most common display values are block and inline.
Block-level Elements
A block-level element always starts on a new line, and the browsers automatically add some space (a margin) before and after the element.
A block-level element always takes up the full width available (stretches out to the left and right as far as it can).
Two commonly used block elements are: <p> and <div>.
The <p> element defines a paragraph in an HTML document.
The <div> element defines a division or a section in an HTML document.