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No.203 · CTAs

Liquid Glass CTA

A newsletter sign-up held in a capsule of glass over slow drifting colour; the rim bends the colour behind it and catches the light at your pointer, and signing up squashes it like a drop.

The prompt

Written for the variant you picked above: Dusk

Build a closing newsletter section over a slow aurora: four big blurred blobs (blur 60px) drifting on unrelated 17–27s loops, plus faint vertical hairlines so refraction is visible. Centre a mono eyebrow, a balanced headline and a short line, then a capsule form (30rem, fully rounded) made of glass: a faint white gradient, backdrop blur and saturation, an inner top highlight, an inner ring and a soft lower glow. In Chromium, add edge refraction: measure the capsule and build an SVG displacement map at its exact size (red left→right and blue top→bottom gradients blended with difference, and a neutral grey pill inset 16px and blurred), then apply backdrop-filter: url(#lens) blur(2px) saturate(1.6) via feImage + feDisplacementMap (scale −48). A 1.25px rim, made with a content-box mask, carries a radial highlight positioned at the pointer. Inside: a transparent email input and a solid white pill button. Validate on submit with plain sentences ('That doesn't look like an email address…'). On success, the capsule squashes like a drop (1.05 × 0.86, springing back over 700ms) while the fields fade up and out and a single confirmation line fades in: 'You're in. The first letter reaches you@… on Sunday.' Selected variant — Dusk: palette="dusk": aurora blobs of coral #ff7a59, violet #8b5cf6, gold #f5c26b and pink #e0457b over #120b1c.

Notes

Interaction
Move over the capsule and its rim catches the light where you are. Type an email and subscribe; errors are explained in a sentence.
Motion
Aurora drifts on 17–27s loops; success squish 700ms spring; fields and confirmation crossfade 420ms.
Accessibility
A labelled email field with autocomplete, aria-invalid and a polite message line that carries hints, errors and the confirmation. The submitted fields become inert. Reduced motion stops the aurora and the squish.
Responsive
The capsule shrinks to the column; the lens map is rebuilt for every size; the button tightens on small phones.
On touch
The rim highlight rests at the top-left; everything else works by tap.

Featured

01Glassbreak ButtonA solid plate that fractures from one impact point, cracks racing outward as the shards drift apart.04Liquid GlassA capsule of glass that bends what's behind it, carries a specular highlight around its rim toward your pointer, and squashes like a drop of liquid when pressed.07Phosphor Glass ButtonA liquid-glass pill that senses you coming: its rim light turns to face the cursor and the pill leans in to meet it.08Iris ShutterAn async button with a camera iris for a status light — blades close and turn while it works, then open onto the result.
81Atmosphere CardSmoked-glass link cards: colour pooled in the corners, slow contour currents underneath, a field that leans toward you.93Eclipse Event CardAn editorial event plate with an oversized date and an orbital eclipse bleeding in from the right, alive with slow drift.94Specimen CardAn object mounted under glass: hover lifts the pane with a sweep of reflection and swings out a paper catalogue tag.
95Silk FieldDomain-warped light that pours like liquid silk, with an optional glass lens that refracts the flow under your cursor.106IsobarA living weather map — contour lines traced over a drifting pressure field, with your cursor as a system of its own.
151Prompt ComposerA chat composer where attached files tuck into its top edge like tabs in a folder — they rise from behind it when added and sink back when removed. Send turns into stop while the reply streams.157Aura FieldA writing field where colour only exists while the AI is touching your text: the edge becomes a turning band of light and the words are rewritten in place, one by one, out of a soft blur.
205Halftone CTAA tall CTA banner where slow gold paint drifts beneath a fixed halftone grid, visible only through the dots.
212Nocturne Sign-inA single quiet column on near-black with a breathing seam of frost light behind it — email, password, magic link, nothing more.222Sigil Sign-inA split sign-in whose left half grows a geometric mark from your email — the same address always draws the same sigil.
275Voices CarouselA testimonial exhibition: one large quote at a time on frosted glass, crossfading between voices without ever resizing.
279Feral TitleA brutal condensed wordmark — heartbeat in the dark, letters slam in, a gash tears through and the word bleeds.
301 components