Sizing
5.6
Lesson

Relative Unit 'vh'

When length is specified using vh, it is calculated based on the window height, also known as viewport height.

1vh is 1% of the window height. So, 100vh is equivalent to the window height.

Viewport is the visible part of a screen. In the example given above, the viewport is the rectangular window given below the code editor and the div covers it completely with a height of 100vh.