Viewport Dimension Overlay

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