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Scroll to Top Button

Scroll to Top button that appears after scrolling down 20%

コードが変更されたバージョンのみを表示しています すべてのバージョンを表示

  • v2.3 2026/05/10
  • v2.2 2026/05/07
    • Minor update
  • v2.2 2026/05/06
    • Improvement and optimization.
  • v2.1 2026/05/04
    • Version: bumped to 2.2
    • Icon: replaced SVG with text glyph ↑↑
    • Size: button diameter set to 40px
    • Layout: enforced explicit font-size and line-height for the glyph to fix vertical alignment.
    • Isolation: kept a closed Shadow DOM and inline styles to avoid site CSS interference.
    • Behavior preserved: draggable positioning, saved position in localStorage, auto-hide on scroll, smooth scroll on click, and keyboard activation retained.
    • Storage key: unchanged (r2t_pos_v1).
  • v2.0 2026/04/28
    • Moved the button into a shadow root to prevent site CSS interference.
    • Stable dragging, switched to pointer events.
    • Position persistence in localStorage.
    • Replaced the arrow with an SVG path.
    • Replaced descriptive IDs/classes with short names.
  • v1.0 2026/04/11