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catraco's hover button

HTML, CSS or Tailwind, and a little JavaScript. One button or a group of up to six.

By catraco

Remix button

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Buttons only: no full pages, forms, cards or navigation. Put scripts in the JavaScript tab. Tailwind uses utilities from HTML and JavaScript; use complete class names. Custom CSS supports plain CSS, without @apply, imports or plugins.

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Explore freely here. Remix to publish your version with credit to the creator.

About catraco's hover button

catraco's hover button is an animated Tailwind CSS v4 button by catraco. Preview the interaction, customize its HTML, styles and JavaScript, or download the files with creator credit.

Effects and categories: Hover effects
Using this example: Copy the HTML or download index.html, style.css and app.js. Test keyboard focus, motion and contrast in your own project.

Usage, Tailwind and licensing questions

Read the source files

HTML

<button class="bg-red-950 text-red-400 border border-red-400 border-b-4 font-medium overflow-hidden relative px-4 py-2 rounded-md hover:brightness-150 hover:border-t-4 hover:border-b active:opacity-75 outline-none duration-300 group">
  <span class="bg-red-400 shadow-red-400 absolute -top-[150%] left-0 inline-flex w-80 h-[5px] rounded-md opacity-50 group-hover:top-[150%] duration-500 shadow-[0_0_10px_10px_rgba(0,0,0,0.3)]"></span>
  Hover Me
</button>

CSS

/*! tailwindcss v4.3.3 | MIT License | https://tailwindcss.com */
@layer properties;
@layer theme, base, components, utilities;
@layer theme {
  :root, :host {
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
      "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji",
      "Segoe UI Symbol", "Noto Color Emoji";
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
      "Courier New", monospace;
    --color-red-400: oklch(70.4% 0.191 22.216);
    --color-red-950: oklch(25.8% 0.092 26.042);
    --spacing: 0.25rem;
    --font-weight-medium: 500;
    --radius-md: 0.375rem;
    --default-font-family: var(--font-sans);
    --default-mono-font-family: var(--font-mono);
  }
}
@layer base {
  *, ::after, ::before, ::backdrop, ::file-selector-button {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    border: 0 solid;
  }
  html, :host {
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    tab-size: 4;
    font-family: var(--default-font-family, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");
    font-feature-settings: var(--default-font-feature-settings, normal);
    font-variation-settings: var(--default-font-variation-settings, normal);
    -webkit-tap-highlight-color: transparent;
  }
  hr {
    height: 0;
    color: inherit;
    border-top-width: 1px;
  }
  abbr:where([title]) {
    -webkit-text-decoration: underline dotted;
    text-decoration: underline dotted;
  }
  h1, h2, h3, h4, h5, h6 {
    font-size: inherit;
    font-weight: inherit;
  }
  a {
    color: inherit;
    -webkit-text-decoration: inherit;
    text-decoration: inherit;
  }
  b, strong {
    font-weight: bolder;
  }
  code, kbd, samp, pre {
    font-family: var(--default-mono-font-family, ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);
    font-feature-settings: var(--default-mono-font-feature-settings, normal);
    font-variation-settings: var(--default-mono-font-variation-settings, normal);
    font-size: 1em;
  }
  small {
    font-size: 80%;
  }
  sub, sup {
    font-size: 75%;
    line-height: 0;
    position: relative;
    vertical-align: baseline;
  }
  sub {
    bottom: -0.25em;
  }
  sup {
    top: -0.5em;
  }
  table {
    text-indent: 0;
    border-color: inherit;
    border-collapse: collapse;
  }
  :-moz-focusring:where(:not(iframe)) {
    outline: auto;
  }
  progress {
    vertical-align: baseline;
  }
  summary {
    display: list-item;
  }
  ol, ul, menu {
    list-style: none;
  }
  img, svg, video, canvas, audio, iframe, embed, object {
    display: block;
    vertical-align: middle;
  }
  img, video {
    max-width: 100%;
    height: auto;
  }
  button, input, select, optgroup, textarea, ::file-selector-button {
    font: inherit;
    font-feature-settings: inherit;
    font-variation-settings: inherit;
    letter-spacing: inherit;
    color: inherit;
    border-radius: 0;
    background-color: transparent;
    opacity: 1;
  }
  :where(select:is([multiple], [size])) optgroup {
    font-weight: bolder;
  }
  :where(select:is([multiple], [size])) optgroup option {
    padding-inline-start: 20px;
  }
  ::file-selector-button {
    margin-inline-end: 4px;
  }
  ::placeholder {
    opacity: 1;
  }
  @supports (not (-webkit-appearance: -apple-pay-button))  or (contain-intrinsic-size: 1px) {
    ::placeholder {
      color: currentcolor;
      @supports (color: color-mix(in lab, red, red)) {
        color: color-mix(in oklab, currentcolor 50%, transparent);
      }
    }
  }
  textarea {
    resize: vertical;
  }
  ::-webkit-search-decoration {
    -webkit-appearance: none;
  }
  ::-webkit-date-and-time-value {
    min-height: 1lh;
    text-align: inherit;
  }
  ::-webkit-datetime-edit {
    display: inline-flex;
  }
  ::-webkit-datetime-edit-fields-wrapper {
    padding: 0;
  }
  ::-webkit-datetime-edit, ::-webkit-datetime-edit-year-field, ::-webkit-datetime-edit-month-field, ::-webkit-datetime-edit-day-field, ::-webkit-datetime-edit-hour-field, ::-webkit-datetime-edit-minute-field, ::-webkit-datetime-edit-second-field, ::-webkit-datetime-edit-millisecond-field, ::-webkit-datetime-edit-meridiem-field {
    padding-block: 0;
  }
  ::-webkit-calendar-picker-indicator {
    line-height: 1;
  }
  :-moz-ui-invalid {
    box-shadow: none;
  }
  button, input:where([type="button"], [type="reset"], [type="submit"]), ::file-selector-button {
    appearance: button;
  }
  ::-webkit-inner-spin-button, ::-webkit-outer-spin-button {
    height: auto;
  }
  [hidden]:where(:not([hidden="until-found"])) {
    display: none !important;
  }
}
@layer utilities {
  .absolute {
    position: absolute;
  }
  .relative {
    position: relative;
  }
  .-top-\[150\%\] {
    top: calc(150% * -1);
  }
  .left-0 {
    left: 0px;
  }
  .inline-flex {
    display: inline-flex;
  }
  .h-\[5px\] {
    height: 5px;
  }
  .w-80 {
    width: calc(var(--spacing) * 80);
  }
  .overflow-hidden {
    overflow: hidden;
  }
  .rounded-md {
    border-radius: var(--radius-md);
  }
  .border {
    border-style: var(--tw-border-style);
    border-width: 1px;
  }
  .border-b-4 {
    border-bottom-style: var(--tw-border-style);
    border-bottom-width: 4px;
  }
  .border-red-400 {
    border-color: var(--color-red-400);
  }
  .bg-red-400 {
    background-color: var(--color-red-400);
  }
  .bg-red-950 {
    background-color: var(--color-red-950);
  }
  .px-4 {
    padding-inline: calc(var(--spacing) * 4);
  }
  .py-2 {
    padding-block: calc(var(--spacing) * 2);
  }
  .font-medium {
    --tw-font-weight: var(--font-weight-medium);
    font-weight: var(--font-weight-medium);
  }
  .text-red-400 {
    color: var(--color-red-400);
  }
  .opacity-50 {
    opacity: 50%;
  }
  .shadow-\[0_0_10px_10px_rgba\(0\,0\,0\,0\.3\)\] {
    --tw-shadow: 0 0 10px 10px var(--tw-shadow-color, rgba(0,0,0,0.3));
    box-shadow: var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow);
  }
  .shadow-red-400 {
    --tw-shadow-color: oklch(70.4% 0.191 22.216);
    @supports (color: color-mix(in lab, red, red)) {
      --tw-shadow-color: color-mix(in oklab, var(--color-red-400) var(--tw-shadow-alpha), transparent);
    }
  }
  .duration-300 {
    --tw-duration: 300ms;
    transition-duration: 300ms;
  }
  .duration-500 {
    --tw-duration: 500ms;
    transition-duration: 500ms;
  }
  .outline-none {
    --tw-outline-style: none;
    outline-style: none;
  }
  @media (hover: hover) {
    .group-hover\:top-\[150\%\]:is(:where(.group):hover *) {
      top: 150%;
    }
    .hover\:border-t-4:hover {
      border-top-style: var(--tw-border-style);
      border-top-width: 4px;
    }
    .hover\:border-b:hover {
      border-bottom-style: var(--tw-border-style);
      border-bottom-width: 1px;
    }
    .hover\:brightness-150:hover {
      --tw-brightness: brightness(150%);
      filter: var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,);
    }
  }
  .active\:opacity-75:active {
    opacity: 75%;
  }
}
@property --tw-border-style {
  syntax: "*";
  inherits: false;
  initial-value: solid;
}
@property --tw-font-weight {
  syntax: "*";
  inherits: false;
}
@property --tw-shadow {
  syntax: "*";
  inherits: false;
  initial-value: 0 0 #0000;
}
@property --tw-shadow-color {
  syntax: "*";
  inherits: false;
}
@property --tw-shadow-alpha {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 100%;
}
@property --tw-inset-shadow {
  syntax: "*";
  inherits: false;
  initial-value: 0 0 #0000;
}
@property --tw-inset-shadow-color {
  syntax: "*";
  inherits: false;
}
@property --tw-inset-shadow-alpha {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 100%;
}
@property --tw-ring-color {
  syntax: "*";
  inherits: false;
}
@property --tw-ring-shadow {
  syntax: "*";
  inherits: false;
  initial-value: 0 0 #0000;
}
@property --tw-inset-ring-color {
  syntax: "*";
  inherits: false;
}
@property --tw-inset-ring-shadow {
  syntax: "*";
  inherits: false;
  initial-value: 0 0 #0000;
}
@property --tw-ring-inset {
  syntax: "*";
  inherits: false;
}
@property --tw-ring-offset-width {
  syntax: "<length>";
  inherits: false;
  initial-value: 0px;
}
@property --tw-ring-offset-color {
  syntax: "*";
  inherits: false;
  initial-value: #fff;
}
@property --tw-ring-offset-shadow {
  syntax: "*";
  inherits: false;
  initial-value: 0 0 #0000;
}
@property --tw-duration {
  syntax: "*";
  inherits: false;
}
@property --tw-blur {
  syntax: "*";
  inherits: false;
}
@property --tw-brightness {
  syntax: "*";
  inherits: false;
}
@property --tw-contrast {
  syntax: "*";
  inherits: false;
}
@property --tw-grayscale {
  syntax: "*";
  inherits: false;
}
@property --tw-hue-rotate {
  syntax: "*";
  inherits: false;
}
@property --tw-invert {
  syntax: "*";
  inherits: false;
}
@property --tw-opacity {
  syntax: "*";
  inherits: false;
}
@property --tw-saturate {
  syntax: "*";
  inherits: false;
}
@property --tw-sepia {
  syntax: "*";
  inherits: false;
}
@property --tw-drop-shadow {
  syntax: "*";
  inherits: false;
}
@property --tw-drop-shadow-color {
  syntax: "*";
  inherits: false;
}
@property --tw-drop-shadow-alpha {
  syntax: "<percentage>";
  inherits: false;
  initial-value: 100%;
}
@property --tw-drop-shadow-size {
  syntax: "*";
  inherits: false;
}
@layer properties {
  @supports ((-webkit-hyphens: none) and (not (margin-trim: inline))) or ((-moz-orient: inline) and (not (color:rgb(from red r g b)))) {
    *, ::before, ::after, ::backdrop {
      --tw-border-style: solid;
      --tw-font-weight: initial;
      --tw-shadow: 0 0 #0000;
      --tw-shadow-color: initial;
      --tw-shadow-alpha: 100%;
      --tw-inset-shadow: 0 0 #0000;
      --tw-inset-shadow-color: initial;
      --tw-inset-shadow-alpha: 100%;
      --tw-ring-color: initial;
      --tw-ring-shadow: 0 0 #0000;
      --tw-inset-ring-color: initial;
      --tw-inset-ring-shadow: 0 0 #0000;
      --tw-ring-inset: initial;
      --tw-ring-offset-width: 0px;
      --tw-ring-offset-color: #fff;
      --tw-ring-offset-shadow: 0 0 #0000;
      --tw-duration: initial;
      --tw-blur: initial;
      --tw-brightness: initial;
      --tw-contrast: initial;
      --tw-grayscale: initial;
      --tw-hue-rotate: initial;
      --tw-invert: initial;
      --tw-opacity: initial;
      --tw-saturate: initial;
      --tw-sepia: initial;
      --tw-drop-shadow: initial;
      --tw-drop-shadow-color: initial;
      --tw-drop-shadow-alpha: 100%;
      --tw-drop-shadow-size: initial;
    }
  }
}