Programming Tutorials

  You have implemented the View Transitions API in a Next.js or React application. The navigation works, but the visual morphing feels "off." Images stretch unpleasantly during the transition (aspect-ratio distortion), or the animation snaps abruptly because multiple elements in a list mistakenly claimed the same   view-transition-name . These artifacts destroy the illusion of continuity. This post details the root cause of these rendering glitches and provides a rigorous solution using React Context for state scoping and advanced CSS pseudo-element manipulation. The Root Cause: Rasterization and Namespace Collisions There are two distinct technical failures occurring when view transitions glitch: The Rasterization Trap (Aspect Ratio Mismatch):  When the browser captures a snapshot of an element (e.g., a thumbnail  1:1 ) to morph it into a new element (e.g., a hero image  16:9 ), it creates a  ::view-transition-group . By default, the browser simply scales ...

  The promise of CSS Grid Level 2 (Subgrid) is tantalizing for design systems: the ability to align nested components (like card headers, bodies, and footers) across sibling elements without hardcoding heights. However, a specific implementation failure is pervasive. You apply  grid-template-rows: subgrid  to a child element, expecting its internals to snap perfectly to the parent's rhythm. Instead, the layout collapses. Content overlaps, or the child items shove themselves into a single track, completely ignoring the internal spacing you intended. This collapse happens because  subgrid  does not create tracks; it exposes existing ones. If the parent item does not span enough tracks to accommodate its own children, the layout logic fails. The Root Cause: The Span Dependency In standard CSS Grid, a nested grid creates a new Independent Formatting Context. It calculates its own track sizes based on its own content. When you declare  grid-template-rows: subgri...