viewpoint css3提供了一些与当前viewpoint相关的元素,vw,vh,vmin, vmax等. “viewpoint” = window size vw = 1% of viewport width 1vh = 1% of viewport height 1vmin = 1vw or 1vh, 最小 1vmax = 1vw or 1vh, 最大 兼容性:chrome 20+/ safari 6+/ IE 10+ / FF 19+ / IOS 6+ DEMO地址:http://qi…