CSS Length Units vh and vw
Example
CSS3 introduced two units for representing size.
vh, which stands forviewport heightis relative to 1% of the viewport heightvw, which stands forviewport widthis relative to 1% of the viewport width
3
div {
width: 20vw;
height: 20vh;
}
Above, the size for the div takes up 20% of the width and height of the viewport
