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Pill Capsule Checkbox

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Pill Capsule Checkbox
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<div class="pill-capsule-container">
  <input type="checkbox" />
  <div class="pill-capsule-checkmark">
    <div class="pill-top"></div>
    <div class="pill-bottom"></div>
    <div class="pill-contents"></div>
    <span class="pill-icon">💊</span>
  </div>
  <span class="pill-capsule-label">Pill Capsule</span>
</div>
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What is inside Pill Capsule Checkbox

Pill Capsule Checkbox is a CSS checkbox built with a keyframe animation, gradient fills, transforms, defined in 134 lines across 17 selectors.

28
CSS properties
17
Selectors
134
Lines of CSS
3
Formats

Techniques used

Keyframe animationTransitionsTransformsGradientsShadowsPseudo elementsChecked stateFlexbox

Animations defined: capsule-dissolvecontents-release

CSS properties in this component

align-itemsanimationbackgroundborderborder-colorborder-radiusbottombox-shadowcolorcontentcursordisplayfont-sizefont-weightgapheightinputjustify-contentleftopacityoverflowpositionrighttoptransformtransitionuser-selectwidth

Accessibility check2 to fix

  • Built on a native <input> element, so keyboard focus and screen reader semantics work without extra attributes.
  • No focus style is defined. Add one before shipping, or keyboard users lose track of position.
  • Animates without a prefers-reduced-motion guard. Wrap the animation in that query if motion sensitivity matters to your audience.

These notes are generated by reading this component's own source, so they describe what it actually does rather than what a template says. Copy the code above in HTML, CSS, Tailwind and adapt it freely.

About Pill Capsule Checkbox

Pill Capsule Checkbox is a checkbox built with a keyframe animation, gradient fills, transforms, layered shadows and pseudo elements. Its stylesheet runs to 134 lines across 17 rules, declaring 28 distinct properties. It styles checked state explicitly, so the component responds to interaction rather than sitting still. The animation is driven by keyframe sequences named capsule-dissolve and contents-release, which you can retime or remove without touching the rest of the styling. Every format shown on this page is the same component, so you can take HTML, CSS and Tailwind depending on how your project is set up. Nothing is minified and nothing depends on a framework.

When to use

How it works

The base rule sets the shape with border-radius, display, height and position. The fill is a gradient rather than a flat colour, so it is a single background declaration with no image to load. A pseudo element carries part of the effect, which keeps the markup to one element while giving the CSS a second surface to animate. Movement is done with transforms rather than by changing position or size, which is what keeps it smooth: transforms are composited and do not force the browser to lay the page out again. State changes are eased with a transition, so hovering does not snap. The looping motion comes from capsule-dissolve and contents-release. Changing the animation-duration is usually the only edit needed to make it faster or calmer.

Accessibility

Keyboard navigation
Supported
Screen reader
Friendly
ARIA
Native element semantics, no extra attributes needed

Built on a native <input> element, so keyboard focus and screen reader semantics work without extra attributes. No focus style is defined. Add one before shipping, or keyboard users lose track of position. Animates without a prefers-reduced-motion guard. Wrap the animation in that query if motion sensitivity matters to your audience. Those are 2 things to fix before this ships in front of users.

Browser support

Chrome
26+
Firefox
16+
Safari
9+
Edge
12+

Everything this component uses has been supported across browsers for years, so no fallback is needed.

Frequently asked questions