Practices

Pages

• Classroom Lifetime Badge
  Viclass plan-time chip on the top-left classroom pill. It counts down the owner's session_duration, and on 1 November 2026 the full-round corner classes are uncommitted while the pane-toolbar commit keeps only the placement comment.
• Reflow Repaint And CLS Optimization
  Explains how reflow, repaint and layout shift work in the browser and how to optimize them to keep Cumulative Layout Shift low in Core Web Vitals.