UI Components Easy

Swap

DaisyUI-style swap component — toggle between two states (icon/text) with flip, rotate, or fade animations. CSS-only, no JavaScript.

Open in Lab

css

Targets: HTML

Code

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Inter, system-ui, sans-serif;
  background: #050910;
  color: #f2f6ff;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

/* ── Demo shell ── */
.demo {
  width: min(520px, 100%);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.demo-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #f2f6ff;
}

.demo-sub {
  font-size: 0.9rem;
  color: #8090b0;
  line-height: 1.6;
}

/* ── Grid of swap demos ── */
.swap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.swap-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  padding: 1.5rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 1rem;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.swap-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.12);
}

.swap-card__label {
  font-size: 0.75rem;
  color: #5a6a8a;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

/* ── Swap base ── */
.swap {
  position: relative;
  display: inline-grid;
  place-items: center;
  cursor: pointer;
  width: 2.5rem;
  height: 2.5rem;
  color: #8090b0;
  transition: color 0.2s ease;
}

.swap:hover {
  color: #c5d3f0;
}

/* Hide native checkbox */
.swap input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.swap:focus-within {
  outline: 2px solid rgba(79, 110, 247, 0.6);
  outline-offset: 3px;
  border-radius: 0.5rem;
}

/* Both slots overlap */
.swap-on,
.swap-off {
  grid-area: 1 / 1;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 0.3s;
}

/* ── Default: swap-off visible, swap-on hidden ── */
.swap-off {
  opacity: 1;
}
.swap-on {
  opacity: 0;
  pointer-events: none;
}

.swap input:checked ~ .swap-off {
  opacity: 0;
  pointer-events: none;
}
.swap input:checked ~ .swap-on {
  opacity: 1;
  pointer-events: auto;
}

/* ─────────────────────────── Rotate variant ─────────────────────────── */
.swap-rotate .swap-off {
  transform: rotate(0deg);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.25s ease;
}

.swap-rotate .swap-on {
  transform: rotate(-180deg);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.25s ease;
}

.swap-rotate input:checked ~ .swap-off {
  transform: rotate(180deg);
  opacity: 0;
}

.swap-rotate input:checked ~ .swap-on {
  transform: rotate(0deg);
  opacity: 1;
}

/* ─────────────────────────── Flip variant ─────────────────────────── */
.swap-flip {
  perspective: 120px;
}

.swap-flip .swap-off {
  transform: rotateY(0deg);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transition: transform 0.4s ease, opacity 0.1s ease 0.2s;
}

.swap-flip .swap-on {
  transform: rotateY(180deg);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transition: transform 0.4s ease, opacity 0.1s ease 0.2s;
}

.swap-flip input:checked ~ .swap-off {
  transform: rotateY(-180deg);
  opacity: 0;
}

.swap-flip input:checked ~ .swap-on {
  transform: rotateY(0deg);
  opacity: 1;
}

/* ─────────────────────────── Fade variant ─────────────────────────── */
.swap-fade .swap-off,
.swap-fade .swap-on {
  transition: opacity 0.25s ease;
}

/* ── Accent color for star ── */
.swap--accent input:checked ~ .swap-on {
  color: #f59e0b;
}

/* Responsive */
@media (max-width: 380px) {
  .swap-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Swap</title>
  <link rel="stylesheet" href="style.css" />
</head>
<body>

  <div class="demo">
    <h2 class="demo-title">Swap</h2>
    <p class="demo-sub">CSS-only toggle component. Click any button to switch states.</p>

    <div class="swap-grid">

      <!-- 1. Sun / Moon — rotate -->
      <div class="swap-card">
        <label class="swap swap-rotate" aria-label="Toggle theme">
          <input type="checkbox" />
          <!-- Moon (off state) -->
          <svg class="swap-off" xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
            <path d="M21 12.79A9 9 0 1 1 11.21 3 7 7 0 0 0 21 12.79z"/>
          </svg>
          <!-- Sun (on state) -->
          <svg class="swap-on" xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
            <circle cx="12" cy="12" r="5"/>
            <line x1="12" y1="1" x2="12" y2="3"/>
            <line x1="12" y1="21" x2="12" y2="23"/>
            <line x1="4.22" y1="4.22" x2="5.64" y2="5.64"/>
            <line x1="18.36" y1="18.36" x2="19.78" y2="19.78"/>
            <line x1="1" y1="12" x2="3" y2="12"/>
            <line x1="21" y1="12" x2="23" y2="12"/>
            <line x1="4.22" y1="19.78" x2="5.64" y2="18.36"/>
            <line x1="18.36" y1="5.64" x2="19.78" y2="4.22"/>
          </svg>
        </label>
        <span class="swap-card__label">Theme</span>
      </div>

      <!-- 2. Play / Pause — fade -->
      <div class="swap-card">
        <label class="swap swap-fade" aria-label="Toggle playback">
          <input type="checkbox" />
          <!-- Play (off state) -->
          <svg class="swap-off" xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 24 24" fill="currentColor" stroke="currentColor" stroke-width="1" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
            <polygon points="5 3 19 12 5 21 5 3"/>
          </svg>
          <!-- Pause (on state) -->
          <svg class="swap-on" xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 24 24" fill="currentColor" stroke="currentColor" stroke-width="1" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
            <rect x="6" y="4" width="4" height="16"/>
            <rect x="14" y="4" width="4" height="16"/>
          </svg>
        </label>
        <span class="swap-card__label">Media</span>
      </div>

      <!-- 3. Menu / Close — rotate -->
      <div class="swap-card">
        <label class="swap swap-rotate" aria-label="Toggle menu">
          <input type="checkbox" />
          <!-- Menu (off state) -->
          <svg class="swap-off" xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true">
            <line x1="3" y1="6" x2="21" y2="6"/>
            <line x1="3" y1="12" x2="21" y2="12"/>
            <line x1="3" y1="18" x2="21" y2="18"/>
          </svg>
          <!-- Close (on state) -->
          <svg class="swap-on" xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" aria-hidden="true">
            <line x1="18" y1="6" x2="6" y2="18"/>
            <line x1="6" y1="6" x2="18" y2="18"/>
          </svg>
        </label>
        <span class="swap-card__label">Menu</span>
      </div>

      <!-- 4. Star — flip -->
      <div class="swap-card">
        <label class="swap swap-flip swap--accent" aria-label="Toggle favorite">
          <input type="checkbox" />
          <!-- Star outline (off state) -->
          <svg class="swap-off" xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
            <polygon points="12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2"/>
          </svg>
          <!-- Star filled (on state) -->
          <svg class="swap-on" xmlns="http://www.w3.org/2000/svg" width="28" height="28" viewBox="0 0 24 24" fill="currentColor" stroke="currentColor" stroke-width="1.8" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true">
            <polygon points="12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2"/>
          </svg>
        </label>
        <span class="swap-card__label">Favorite</span>
      </div>

    </div>
  </div>

</body>
</html>

Swap

A CSS-only toggle component inspired by DaisyUI’s swap pattern. Uses a hidden <input type="checkbox"> to drive state, with no JavaScript required. Three animation variants — flip, rotate, and fade — cover the most common use cases.

How it works

The .swap wrapper contains a hidden checkbox and two child elements: .swap-on (shown when checked) and .swap-off (shown when unchecked). CSS :checked selectors and sibling combinators handle the entire transition.

Variants

Modifier	Effect
`.swap-flip`	3D Y-axis flip between states
`.swap-rotate`	180° rotation crossfade
`.swap-fade`	Simple opacity crossfade

Demos

Sun / Moon — theme toggle with rotate animation
Play / Pause — media control with fade animation
Menu / Close — hamburger icon with rotate animation
Star — filled/outline toggle with flip animation

When to use it

Dark/light mode toggles
Media player controls
Mobile navigation hamburger menus
Favorite/like buttons