CodePen Embed - 26. Floating action button menu

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A button with <code>popover=manual</code> as the container button.</p>\\n  <ul>\\n    <li>Menu is opened with <code>popovertoggletarget</code>.</li>\\n    <li>Use <code>autofocus</code> to focus the first menu item on open.</li>\\n    <li>Use <code>:has()</code> to twist the icon on open.</li>\\n  </ul>\\n</main>\\n<button class=\\\"fab secondary\\\" popover=\\\"manual\\\" popovertarget=\\\"menu\\\">\\n  <i class=\\\"material-icons\\\">add</i>\\n</button>\\n<div id=\\\"menu\\\" class=\\\"fab__menu\\\" popover=\\\"auto\\\" style=\\\"--count: 3;\\\">\\n  <ul class=\\\"fab__menu-items\\\">\\n    <li class=\\\"fab__menu-item\\\">\\n      <button autofocus class=\\\"fab\\\" style=\\\"--index: 0;\\\" popoverhidetarget=\\\"menu\\\">\\n        <i class=\\\"material-icons\\\">chat</i>\\n      </button>\\n    </li>\\n    <li class=\\\"fab__menu-item\\\">\\n      <button autofocus class=\\\"fab\\\" style=\\\"--index: 1;\\\" popoverhidetarget=\\\"menu\\\">\\n        <i class=\\\"material-icons\\\">photo_camera</i>\\n      </button>\\n    </li>\\n    <li class=\\\"fab__menu-item\\\">\\n      <button autofocus class=\\\"fab\\\" style=\\\"--index: 2;\\\" popoverhidetarget=\\\"menu\\\">\\n        <i class=\\\"material-icons\\\">pin_drop</i>\\n      </button>\\n    </li>\\n  </ul>\\n</div>\",\"css\":\"@layer demo {\\n  .fab[popover] {\\n    height: var(--fab-size);\\n    width: var(--fab-size);\\n    border-radius: 50%;\\n    top: 100%;\\n    left: 100%;\\n    transform: translate(-150%, -150%);\\n    padding: 0;\\n    border: 0;\\n    margin: 0;\\n    background: var(--text-1);\\n    color: var(--surface-1);\\n  }\\n\\n  .fab[popover] i {\\n    transition: transform var(--transition);\\n    transform: rotate(calc(var(--twist, 0) * 45deg));\\n  }\\n\\n  main {\\n    display: grid;\\n    gap: var(--size-4);\\n    line-height: 1.5;\\n  }\\n\\n  #menu {\\n    top: 50%;\\n    left: calc(100% - var(--fab-size));\\n    top: calc(100% - var(--fab-size));\\n    margin: 0;\\n    padding: 0;\\n    border: 0;\\n    transform: translate(-50%, calc(-100% - (var(--fab-size) * 0.5)));\\n    overflow: visible;\\n    background: transparent;\\n    padding: var(--size-6) 0;\\n  }\\n\\n  #menu:open {\\n    --open: 1;\\n  }\\n\\n  .fab__menu-items {\\n    gap: var(--size-4);\\n    list-style-type: none;\\n    display: grid;\\n    padding: 0;\\n    margin: 0;\\n  }\\n\\n  .fab__menu-item {\\n    padding: 0;\\n  }\\n\\n  #menu button {\\n    --tint-color: transparent;\\n    color: var(--text-2);\\n    background: var(--surface-2);\\n    outline-color: var(--text-2);\\n    border-radius: 50%;\\n    transition: transform var(--transition) calc(var(--index) * var(--step));\\n    transform: scale(var(--open, 0));\\n  }\\n\\n  #menu:open button {\\n    transition-delay: calc((var(--count) - var(--index)) * var(--step));\\n  }\\n}\\n\\n@layer base {\\n  :root {\\n    --step: 0.075s;\\n    --transition: 0.15s;\\n    --fab-size: calc(56 * 1.25px);\\n  }\\n  :root:has(#menu:open) {\\n    --twist: 1;\\n  }\\n\\n  *,\\n  *:after,\\n  *:before {\\n    box-sizing: border-box;\\n  }\\n\\n  body {\\n    min-height: 100vh;\\n    display: grid;\\n    place-items: center;\\n    gap: var(--size-4);\\n    font-family: \\\"Google Sans\\\", sans-serif, system-ui;\\n  }\\n\\n  :where([popover]) {\\n    margin: auto;\\n    border-width: initial;\\n    border-style: solid;\\n  }\\n}\\n\",\"js\":\"document.querySelector(\\\".fab\\\").showPopover();\\n\",\"html_pre_processor\":\"none\",\"css_pre_processor\":\"none\",\"js_pre_processor\":\"none\",\"html_classes\":\"popup-support\",\"css_starter\":\"neither\",\"js_library\":null,\"created_at\":\"2022-09-03T20:38:12.250Z\",\"updated_at\":\"2023-03-24T15:22:55.633Z\",\"title\":\"26. 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