background on body

[marcomarco]

Hi guys,

i have this question if i write:

body {background-color:blue;height:200px;width:200px}

i see all blue because also html will be blue.

Instead with border it works:

body {border:2px solid black;height:200px;width:200px}

Who can explain me the reason for the background?

[dsonesuk]

The body height by default is set to content within it. If the html element has no background-color set it takes on the colour of the body. So the body is continues to behave as default, but is hidden by html element background colour, until exposed by adding a styling  such as a border to body as you did, or adding background colour to html element.