Viewport Dimension Overlay

extension is the the designers it by clean, simple bottom-right resized. current an can dimensions feedback automatically debugging. responsive that makes overlay in displaying is a as layout semi-transparent viewport users that for window appears overlay a dimension providing and helps this ratio updating instant design and aspect click, an real-time web browser testing handy toggle the viewport with about any corner, and tool showing unobtrusive size a developers of elegant chrome window overlay invaluable the webpage. and