Each HTML page must include a reference to the external style sheet file inside the element …. , inside the head section

The external .css file can contain HTML tags

may be used if one single HTML page has a unique style

The … is defined inside the <style>

may be used to apply a unique style for a single element

If some properties have been defined for the same selector (element) in different style sheets, the value from the last read style sheet will be used

If the internal style is defined after the link to the external style sheet, the elements will apply external style

if the internal style is defined before the link to the external style sheet, the elements will apply the external style

an inline style has the highest priority, and will override external and internal styles and browser defaults

The background-color property specifies the background color of an element

The background-image property specifies an image to use as the background of an element

By default, the image is not repeated

By default, the background-image property repeats an image both horizontally and vertically

the image is repeated only horizontally (background-repeat: repeat-y;)

Showing the background image only once is also specified by the background-repeat property

The background-position property is used to specify the position of the background image

The border-style property specifies what kind of border to display

The border property is a shorthand property for

which property is required in border shorthand property

CSS has properties for specifying the margin for each side of an element

All the margin properties can have the following values