Polypane
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Polypane news and updates covering a browser built for developers, showing multiple viewports at once. Readers can learn about synchronised panes and device emulation, accessibility and contrast checks, layout debugging tools, meta and social preview inspection.
Offset parent and stacking context: positioning elements in all three dimensionsPolypane, The browser for ambitious web developersCore Web Vitals Tools To Boost Your Web Performance Scores — Smashing MagazineThe root scroller and how not to lose itPolypane 31: Canvas layout, elements panel improvements and Chromium 155Polypane 30: Playgrounds, Side Panel extension API, updated video recording and Chromium 152Polypane 30.1: Selector specificity insights, server HTML validation, and more