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Devlog 22: F11-Equivalent Fullscreen via Root Element

Standardizing Fullscreen to document.documentElement

Fixing disappearing layout elements

  • The Pitfall: Previously, calling requestFullscreen() on the individual #clock-screen container caused the browser to isolate it from the DOM layout. This triggered default browser styling which rendered a pitch-black backdrop, and completely hid crucial layout parts like the header, footer, and side menu buttons.
  • The Solution: We shifted the fullscreen API target from the sub-container directly to document.documentElement (the global <html> node). This aligns the button’s behavior perfectly with standard keyboard F11 fullscreen events.
  • The Result: All global UI elements (header, footer, navigation) now scale smoothly and remain perfectly visible and interactive without any layout shifts or z-index clashing.
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