AI CSS Animations

Premium

File Tree Indent Guides

Hover a folder, or any file in it, and its indent guide draws down through its children in the accent, the folder flap opens, and the children brighten top to bottom while the rest dims.

Also known as: file explorer hover css, tree view indent guides, vscode file tree hover, nested folder tree animation.

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Unlock the HTML and CSS

Everything you see above is live. Basic and Pro include every premium piece, with the HTML and CSS ready to copy, plus the Tailwind version where there is one and Motions in Claude Code on Pro.

Customizing this snippet

  • Color: set --hfx-color on the element or a parent. Currently previewing #3b82f6.
  • Base size: set --hfx-size. Every other dimension is in em, so the whole thing scales together. Currently previewing 16px.
  • Speed: change the duration on the transition or animation shorthand. Staggered delays are relative, so they keep their rhythm.
  • Reduced motion: the rule at the end of the CSS turns the motion off for people who asked their OS for less of it. Keep it.

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