Viewport relative units. See http://www.w3.org/TR/css3-values/#viewport-relative-lengths.
These units are dynamic, meaning they change as the device's viewport changes.
Viewport units can be used with any css properties that accepts a length, so they're not just for font-size
.
##Units support
- vw: 1vw is 1% of the width of the viewport
- vh: 1vh is 1% of the height of the viewport
- vmin: Is the smaller of the viewport's width or height
- vmax: Is the larger of the viewport's width or height
##Native support
Few browsers support viewport units at the moment and those that do differ from the spec when it comes to resizing and vmax
support. See http://caniuse.com/viewport-units
##Examples
<script type="text/javascript">
CSSVUnits.add({
selector : 'p',
style : {
"margin" : "10vh auto",
"min-width" : "40vw",
"max-width" : "960px",
"font-size" : "3vmax",
}
});
</script>