51 CSS Buttons
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All 51 in 51 CSS Buttons

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  2. 02CSS Primary and Secondary Button Pair
  3. 03CSS Ghost / Outline Button
  4. 04CSS Icon-Only Button with Accessible Tooltip
  5. 05CSS Gradient CTA Button
  6. 06CSS Loading Spinner Button (State Transition)
  7. 07CSS Disabled Button State (Full State Reference)
  8. 08CSS Button Group Component (Segmented Radio-Like)
  9. 09CSS Add to Cart Button
  10. 10CSS Download Progress Button
  11. 11CSS Like Heart Button
  12. 12CSS Confirm Delete Button
  13. 13CSS Play Pause Button
  14. 14CSS Subscribe Confetti Button
  15. 15CSS Magnetic Mercury Ripple Button
  16. 16CSS Brutalist Glitch Button
  17. 17CSS Neon Plasma Burst Button
  18. 18CSS Clay Press Button
  19. 19CSS Editorial Ink Spread Button
  20. 20CSS Particle Shard Burst Button
  21. 21CSS Brushed Brass Plate Button
  22. 22CSS Washi Paper Crane Button
  23. 23CSS Frosted Ice Cube Button
  24. 24CSS Vintage Typewriter Key Button
  25. 25CSS Lacquered Walnut Wood Button
  26. 26CSS Pharma Gel Capsule Button
  27. 27CSS Aged Copper Coin Button
  28. 28CSS Origami Fortune Cookie Button
  29. 29CSS Holographic Foil Sticker Button
  30. 30CSS Brutalist Concrete Slab Button
  31. 31CSS Mercury Bead Morph Button
  32. 32CSS Soft Pill Modern SaaS Button
  33. 33CSS Masking Tape Label Button
  34. 34CSS Obsidian Glass Shard Button
  35. 35CSS Wine Velvet Ribbon Button
  36. 36CSS LED Segment Display Button
  37. 37CSS Cassette Mixtape Label Button
  38. 38CSS Chalkboard Menu Button
  39. 39CSS Vinyl Record Sleeve Ripple Button
  40. 40CSS Polaroid Snapshot Button
  41. 41CSS Airline Boarding Pass Button
  42. 42CSS Aged Brass Subway Token Button
  43. 43CSS Vintage Rx Pharmacy Label Button
  44. 44CSS Bakelite Radio Dial Toggle Button
  45. 45CSS Regal Postage Stamp Button
  46. 46CSS Victorian Cigar Band Foil Button
  47. 47CSS Vintage Calculator Key Button
  48. 48CSS Toolbox Latch Spotlight Button
  49. 49CSS Receipt Paper Total Count-Up Button
  50. 50CSS IBM Punch Card Magnetic Follow Button
  51. 51CSS Brass Periscope Lens Button
Pure CSSMIT licensed

CSS Brass Periscope Lens Button

A brass periscope objective: a knurled bezel, an engraved focus scale, and a six-blade iris that irises open on hover to reveal the glass — each blade a clipped triangle rotating about the optical centre, with a reflection sweep across the coated lens.

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The code

<div class="cb-51">
  <div class="cb-51__stage">
    <button class="cb-51__btn" type="button" aria-label="Open the viewfinder">
      <span class="cb-51__bezel" aria-hidden="true">
        <span class="cb-51__knurl"></span>
        <span class="cb-51__scale"></span>
        <span class="cb-51__barrel">
          <span class="cb-51__glass"></span>
          <span class="cb-51__iris">
            <span class="cb-51__blade" style="--i:0"></span>
            <span class="cb-51__blade" style="--i:1"></span>
            <span class="cb-51__blade" style="--i:2"></span>
            <span class="cb-51__blade" style="--i:3"></span>
            <span class="cb-51__blade" style="--i:4"></span>
            <span class="cb-51__blade" style="--i:5"></span>
          </span>
          <span class="cb-51__flare"></span>
        </span>
      </span>
    </button>
  </div>
</div>
@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@500;600&display=swap');

.cb-51 {
  --bg: #141613;
  --brass: #b28c4c;
  --brass-hi: #e8cc90;
  --brass-lo: #6f5426;
  --blade: #2a2b28;
  --blade-hi: #4a4b46;
  --glass: #1a3b46;
  --coat: #4fd6c9;
  --size: 9.5rem;
  --sans: "Oswald",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  width: 100%;
  min-height: 100vh;
  min-height: 100svh;
  display: block;
  background: radial-gradient(30rem 20rem at 50% 44%, color-mix(in oklab,var(--brass) 14%,transparent), transparent 74%), var(--bg);
  font-family: var(--sans);
}

@supports (color: oklch(50% 0 0)) {
  .cb-51 {
    --brass: oklch(66% .08 84);
    --brass-hi: oklch(86% .08 88);
    --brass-lo: oklch(45% .07 82);
    --coat: oklch(82% .12 182);
  }
}

@media (prefers-color-scheme: light) {
  .cb-51:not([data-theme="dark"]) {
    --bg: #1e211d;
  }
}

.cb-51[data-theme="light"] {
  --bg: #1e211d;
}

.cb-51,
.cb-51 *,
.cb-51 *::before,
.cb-51 *::after {
  box-sizing: border-box;
}

.cb-51__stage {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: clamp(1.5rem,6vw,4rem);
}

.cb-51__btn {
  cursor: pointer;
  border: 0;
  background: transparent;
  padding: 0;
  font: inherit;
  -webkit-tap-highlight-color: transparent;
}

.cb-51__bezel {
  position: relative;
  display: grid;
  place-items: center;
  width: var(--size);
  height: var(--size);
  border-radius: 50%;
  background: radial-gradient(circle at 34% 26%, var(--brass-hi), transparent 56%), linear-gradient(150deg, var(--brass), var(--brass-lo));
  box-shadow: inset 0 2px 3px rgba(255,255,255,.45), inset 0 -3px 7px rgba(0,0,0,.55), 0 18px 28px -12px rgba(0,0,0,.85);
  transition: rotate .55s cubic-bezier(.16,1,.3,1), filter .3s ease;
}

.cb-51__knurl {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: repeating-conic-gradient(from 0deg, rgba(255,255,255,.22) 0 1.4deg, rgba(0,0,0,.28) 1.4deg 3deg);
  -webkit-mask: radial-gradient(farthest-side, transparent 86%, #000 88%);
  mask: radial-gradient(farthest-side, transparent 86%, #000 88%);
}

.cb-51__scale {
  position: absolute;
  inset: 9%;
  border-radius: 50%;
  background: repeating-conic-gradient(from -90deg, var(--brass-lo) 0 1deg, transparent 1deg 15deg);
  -webkit-mask: radial-gradient(farthest-side, transparent 82%, #000 84%);
  mask: radial-gradient(farthest-side, transparent 82%, #000 84%);
  opacity: .75;
}

.cb-51__barrel {
  position: relative;
  display: grid;
  place-items: center;
  width: 66%;
  height: 66%;
  border-radius: 50%;
  overflow: hidden;
  background: radial-gradient(circle at 50% 50%, #101210, #050605);
  box-shadow: inset 0 0 0 3px color-mix(in oklab,var(--brass-lo) 80%,black), inset 0 4px 10px rgba(0,0,0,.9);
}

.cb-51__glass {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  z-index: 1;
  background: radial-gradient(circle at 62% 70%, color-mix(in oklab,var(--coat) 55%,transparent), transparent 58%), radial-gradient(circle at 34% 26%, rgba(255,255,255,.5), transparent 42%), radial-gradient(circle at 50% 50%, var(--glass), #08181d 78%);
}

.cb-51__iris {
  position: absolute;
  inset: 0;
  z-index: 2;
  border-radius: 50%;
}

.cb-51__blade {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, var(--blade-hi), var(--blade));
  clip-path: polygon(50% 50%, 100% 6%, 100% 94%);
  rotate: calc(var(--i) * 60deg);
  transform-origin: 50% 50%;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.5);
  transition: rotate .55s cubic-bezier(.16,1,.3,1), scale .55s cubic-bezier(.16,1,.3,1), opacity .4s ease;
}

.cb-51__flare {
  position: absolute;
  inset: -30%;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(104deg, transparent 42%, rgba(255,255,255,.42) 50%, transparent 58%);
  translate: -70% 0;
  transition: translate .9s cubic-bezier(.16,1,.3,1);
}

.cb-51__btn:is(:hover,:focus-visible) .cb-51__blade {
  rotate: calc(var(--i) * 60deg + 44deg);
  scale: .5;
}

.cb-51__btn:is(:hover,:focus-visible) .cb-51__flare {
  translate: 70% 0;
}

.cb-51__btn:hover .cb-51__bezel {
  filter: brightness(1.06);
}

.cb-51__btn:focus-visible {
  outline: none;
}

.cb-51__btn:focus-visible .cb-51__bezel {
  outline: 2px solid var(--brass-hi);
  outline-offset: 5px;
}

.cb-51__btn:active .cb-51__bezel {
  rotate: 6deg;
}

.cb-51__btn:disabled {
  cursor: not-allowed;
  filter: grayscale(.7) brightness(.85);
}

@media (prefers-reduced-motion: reduce) {
  .cb-51__bezel,
    .cb-51__blade,
    .cb-51__flare {
    transition: none;
  }
}

@media (forced-colors: active) {
  .cb-51__bezel {
    background: ButtonFace;
    border: 1px solid ButtonText;
    box-shadow: none;
  }

  .cb-51__knurl,
    .cb-51__scale,
    .cb-51__flare {
    display: none;
  }

  .cb-51__barrel {
    background: Canvas;
    box-shadow: inset 0 0 0 2px CanvasText;
  }

  .cb-51__blade {
    background: ButtonText;
  }
}
Paste this into ChatGPT, Claude, Cursor, or any coding assistant. The block below is pre-framed with everything the AI needs to integrate this demo into your project — markup, styles, scoping notes, and the source URL. Hit Copy and paste straight into your chat.
Here's a working CSS Button from CodeFronts. Use it as-is or adapt to your framework. All classes are scoped under a unique prefix so the code won't collide with your existing styles. MIT licensed.
Demo: CSS Brass Periscope Lens Button
Source: https://codefronts.com/components/css-buttons/css-brass-periscope-lens-button/

A brass periscope objective: a knurled bezel, an engraved focus scale, and a six-blade iris that irises open on hover to reveal the glass — each blade a clipped triangle rotating about the optical centre, with a reflection sweep across the coated lens.
## HTML
```html
<div class="cb-51">
  <div class="cb-51__stage">
    <button class="cb-51__btn" type="button" aria-label="Open the viewfinder">
      <span class="cb-51__bezel" aria-hidden="true">
        <span class="cb-51__knurl"></span>
        <span class="cb-51__scale"></span>
        <span class="cb-51__barrel">
          <span class="cb-51__glass"></span>
          <span class="cb-51__iris">
            <span class="cb-51__blade" style="--i:0"></span>
            <span class="cb-51__blade" style="--i:1"></span>
            <span class="cb-51__blade" style="--i:2"></span>
            <span class="cb-51__blade" style="--i:3"></span>
            <span class="cb-51__blade" style="--i:4"></span>
            <span class="cb-51__blade" style="--i:5"></span>
          </span>
          <span class="cb-51__flare"></span>
        </span>
      </span>
    </button>
  </div>
</div>
```
## CSS
```css
@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@500;600&display=swap');

.cb-51 {
  --bg: #141613;
  --brass: #b28c4c;
  --brass-hi: #e8cc90;
  --brass-lo: #6f5426;
  --blade: #2a2b28;
  --blade-hi: #4a4b46;
  --glass: #1a3b46;
  --coat: #4fd6c9;
  --size: 9.5rem;
  --sans: "Oswald",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  width: 100%;
  min-height: 100vh;
  min-height: 100svh;
  display: block;
  background: radial-gradient(30rem 20rem at 50% 44%, color-mix(in oklab,var(--brass) 14%,transparent), transparent 74%), var(--bg);
  font-family: var(--sans);
}

@supports (color: oklch(50% 0 0)) {
  .cb-51 {
    --brass: oklch(66% .08 84);
    --brass-hi: oklch(86% .08 88);
    --brass-lo: oklch(45% .07 82);
    --coat: oklch(82% .12 182);
  }
}

@media (prefers-color-scheme: light) {
  .cb-51:not([data-theme="dark"]) {
    --bg: #1e211d;
  }
}

.cb-51[data-theme="light"] {
  --bg: #1e211d;
}

.cb-51,
.cb-51 *,
.cb-51 *::before,
.cb-51 *::after {
  box-sizing: border-box;
}

.cb-51__stage {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: clamp(1.5rem,6vw,4rem);
}

.cb-51__btn {
  cursor: pointer;
  border: 0;
  background: transparent;
  padding: 0;
  font: inherit;
  -webkit-tap-highlight-color: transparent;
}

.cb-51__bezel {
  position: relative;
  display: grid;
  place-items: center;
  width: var(--size);
  height: var(--size);
  border-radius: 50%;
  background: radial-gradient(circle at 34% 26%, var(--brass-hi), transparent 56%), linear-gradient(150deg, var(--brass), var(--brass-lo));
  box-shadow: inset 0 2px 3px rgba(255,255,255,.45), inset 0 -3px 7px rgba(0,0,0,.55), 0 18px 28px -12px rgba(0,0,0,.85);
  transition: rotate .55s cubic-bezier(.16,1,.3,1), filter .3s ease;
}

.cb-51__knurl {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: repeating-conic-gradient(from 0deg, rgba(255,255,255,.22) 0 1.4deg, rgba(0,0,0,.28) 1.4deg 3deg);
  -webkit-mask: radial-gradient(farthest-side, transparent 86%, #000 88%);
  mask: radial-gradient(farthest-side, transparent 86%, #000 88%);
}

.cb-51__scale {
  position: absolute;
  inset: 9%;
  border-radius: 50%;
  background: repeating-conic-gradient(from -90deg, var(--brass-lo) 0 1deg, transparent 1deg 15deg);
  -webkit-mask: radial-gradient(farthest-side, transparent 82%, #000 84%);
  mask: radial-gradient(farthest-side, transparent 82%, #000 84%);
  opacity: .75;
}

.cb-51__barrel {
  position: relative;
  display: grid;
  place-items: center;
  width: 66%;
  height: 66%;
  border-radius: 50%;
  overflow: hidden;
  background: radial-gradient(circle at 50% 50%, #101210, #050605);
  box-shadow: inset 0 0 0 3px color-mix(in oklab,var(--brass-lo) 80%,black), inset 0 4px 10px rgba(0,0,0,.9);
}

.cb-51__glass {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  z-index: 1;
  background: radial-gradient(circle at 62% 70%, color-mix(in oklab,var(--coat) 55%,transparent), transparent 58%), radial-gradient(circle at 34% 26%, rgba(255,255,255,.5), transparent 42%), radial-gradient(circle at 50% 50%, var(--glass), #08181d 78%);
}

.cb-51__iris {
  position: absolute;
  inset: 0;
  z-index: 2;
  border-radius: 50%;
}

.cb-51__blade {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, var(--blade-hi), var(--blade));
  clip-path: polygon(50% 50%, 100% 6%, 100% 94%);
  rotate: calc(var(--i) * 60deg);
  transform-origin: 50% 50%;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.5);
  transition: rotate .55s cubic-bezier(.16,1,.3,1), scale .55s cubic-bezier(.16,1,.3,1), opacity .4s ease;
}

.cb-51__flare {
  position: absolute;
  inset: -30%;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(104deg, transparent 42%, rgba(255,255,255,.42) 50%, transparent 58%);
  translate: -70% 0;
  transition: translate .9s cubic-bezier(.16,1,.3,1);
}

.cb-51__btn:is(:hover,:focus-visible) .cb-51__blade {
  rotate: calc(var(--i) * 60deg + 44deg);
  scale: .5;
}

.cb-51__btn:is(:hover,:focus-visible) .cb-51__flare {
  translate: 70% 0;
}

.cb-51__btn:hover .cb-51__bezel {
  filter: brightness(1.06);
}

.cb-51__btn:focus-visible {
  outline: none;
}

.cb-51__btn:focus-visible .cb-51__bezel {
  outline: 2px solid var(--brass-hi);
  outline-offset: 5px;
}

.cb-51__btn:active .cb-51__bezel {
  rotate: 6deg;
}

.cb-51__btn:disabled {
  cursor: not-allowed;
  filter: grayscale(.7) brightness(.85);
}

@media (prefers-reduced-motion: reduce) {
  .cb-51__bezel,
    .cb-51__blade,
    .cb-51__flare {
    transition: none;
  }
}

@media (forced-colors: active) {
  .cb-51__bezel {
    background: ButtonFace;
    border: 1px solid ButtonText;
    box-shadow: none;
  }

  .cb-51__knurl,
    .cb-51__scale,
    .cb-51__flare {
    display: none;
  }

  .cb-51__barrel {
    background: Canvas;
    box-shadow: inset 0 0 0 2px CanvasText;
  }

  .cb-51__blade {
    background: ButtonText;
  }
}
```

How this works

Each blade is the same clipped shape rotated to its position; opening the iris means rotating every blade a little further about the centre, which naturally widens the opening:

.cb-51__blade{ clip-path:polygon(50% 50%, 100% 8%, 100% 92%);
  rotate:calc(var(--i) * 60deg);
  transition:rotate .55s cubic-bezier(.16,1,.3,1), scale .55s …; }
.cb-51__btn:is(:hover,:focus-visible) .cb-51__blade{
  rotate:calc(var(--i) * 60deg + 42deg); scale:.55; }

The blades sit under a glass layer built from three gradients: a broad blue-green coating tint, a hard specular crescent and a small bright catchlight — the combination that makes CSS read as coated optical glass rather than a coloured circle.

The bezel knurl is a repeating-conic-gradient masked to a ring, and the focus scale is a second, coarser ring of ticks. The whole assembly rotates about 6° on press, as if you were focusing it.

Make it yours

  • Change the blade count: update the 60deg step and the number of blade elements together (360 / n).
  • Adjust the open amount with the added rotation and the blade scale.
  • Retint the coating with the glass layer's first gradient — amber for a vintage uncoated lens, violet for modern multi-coating.
  • Remove the focus scale ring for a cleaner, more modern optic.

Gotchas — read before shipping

  • Six absolutely-positioned clipped blades all transitioning at once is fine; sixty would not be. Keep the count low.
  • clip-path on a rotated element clips in the element's own coordinate space — rotate the element, not the polygon.
  • Icon-only circular controls need an aria-label; the iris is decoration and announces nothing.
  • Radial knurl masks alias below ~4rem; increase the tick width at small sizes.
  • Keep the opening large enough that the label or icon inside stays visible at rest, or users won't know what the control does.

Browser support

ChromeSafariFirefoxEdge
111+16.2+113+111+

Floor set by oklch(), color-mix() as this demo is written. The core technique itself goes back further — Chrome 104+.

repeating-conic-gradient needs Firefox 83 / Chrome 69 / Safari 12.1; individual rotate/scale need Chrome 104 / Safari 14.1 / Firefox 72.

Techniques used in this demo

conic-gradient()MDN ↗filterMDN ↗clip-pathMDN ↗radial-gradient()MDN ↗color-mix()MDN ↗clamp()MDN ↗

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