# Strikethrough task item

> A to-do row where checking the circle draws a line through the text and fades it out.

- Category: [Checkboxes](https://library.aimran.es/components/checkboxes)
- Built with: HTML + CSS
- Live editor: https://library.aimran.es/blocks/uv-chk-task
- Library: AIMRAN Library (https://library.aimran.es), free, no sign-up, by Aimran Oukham

## Where to use it

This is the familiar to-do list checkbox: tick the circle and a line crosses out the task while the text fades. It fits a shopping list app, the checklist of a wedding planner, the ingredients of a recipe you are cooking along with or the tasks of a small project board. The whole row is clickable.

Keep each task to a single line. The strike is drawn through the middle of the text, and a label that wraps would only be half crossed out. Stack several rows with a small gap and you have a working list.

## Code

### HTML

```html
<label class="uv-ct"><input type="checkbox"><span><svg viewBox="0 0 24 24"><path d="M5 12.5l4.5 4.5L19 7.5" pathLength="1"/></svg></span><em>Buy milk</em></label>
```

### CSS

```css
.uv-ct {
  --c1: #0071e3;
  --c2: #8ec5ff;
  --s: 16px;
  /* tamaño */
  --k: 1;
  /* velocidad */
  --fg: #1d1d1f;
  /* texto */
  --bg: #f5f5f7;
  /* fondo */
}

.uv-ct {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  display: inline-flex;
  align-items: center;
  gap: .7em;
  padding: .8em 1.1em;
  border-radius: 1em;
  font-size: var(--s);
  color: var(--fg);
  background: color-mix(in srgb,var(--fg) 5%,transparent);
  cursor: pointer;
}

.uv-ct input {
  display: none;
}

.uv-ct span {
  display: grid;
  place-items: center;
  width: 1.4em;
  height: 1.4em;
  border-radius: 50%;
  box-shadow: inset 0 0 0 2px color-mix(in srgb,var(--fg) 30%,transparent);
  transition: all calc(0.3s / var(--k)) cubic-bezier(.34,1.56,.64,1);
}

.uv-ct svg {
  width: 65%;
  fill: none;
  stroke: #fff;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset calc(0.3s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

.uv-ct em {
  position: relative;
  font-style: normal;
  transition: opacity calc(0.4s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

.uv-ct em::after {
  content: "";
  position: absolute;
  left: -2%;
  top: 52%;
  width: 104%;
  height: 2px;
  border-radius: 2px;
  background: var(--c1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform calc(0.4s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

.uv-ct input:checked~span {
  background: var(--c1);
  box-shadow: none;
}

.uv-ct input:checked~span svg {
  stroke-dashoffset: 0;
}

.uv-ct input:checked~em {
  opacity: .5;
}

.uv-ct input:checked~em::after {
  transform: scaleX(1);
}
```

### React

```tsx
import type { CSSProperties } from "react";

const css = `
.uv-ct {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  display: inline-flex;
  align-items: center;
  gap: .7em;
  padding: .8em 1.1em;
  border-radius: 1em;
  font-size: var(--s);
  color: var(--fg);
  background: color-mix(in srgb,var(--fg) 5%,transparent);
  cursor: pointer;
}

.uv-ct input {
  display: none;
}

.uv-ct span {
  display: grid;
  place-items: center;
  width: 1.4em;
  height: 1.4em;
  border-radius: 50%;
  box-shadow: inset 0 0 0 2px color-mix(in srgb,var(--fg) 30%,transparent);
  transition: all calc(0.3s / var(--k)) cubic-bezier(.34,1.56,.64,1);
}

.uv-ct svg {
  width: 65%;
  fill: none;
  stroke: #fff;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset calc(0.3s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

.uv-ct em {
  position: relative;
  font-style: normal;
  transition: opacity calc(0.4s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

.uv-ct em::after {
  content: "";
  position: absolute;
  left: -2%;
  top: 52%;
  width: 104%;
  height: 2px;
  border-radius: 2px;
  background: var(--c1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform calc(0.4s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

.uv-ct input:checked~span {
  background: var(--c1);
  box-shadow: none;
}

.uv-ct input:checked~span svg {
  stroke-dashoffset: 0;
}

.uv-ct input:checked~em {
  opacity: .5;
}

.uv-ct input:checked~em::after {
  transform: scaleX(1);
}
`;

export default function ChkTask() {
  return (
    <>
      <style>{css}</style>
      <div
        style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "16px",
          "--k": "1",
          "--fg": "#1d1d1f",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <label className="uv-ct"><input type="checkbox" /><span><svg viewBox="0 0 24 24"><path d="M5 12.5l4.5 4.5L19 7.5" pathLength="1" /></svg></span><em>Buy milk</em></label>
      </div>
    </>
  );
}
```

## Prompt for AI assistants

Paste this into ChatGPT, Claude, Cursor, v0 or Lovable to adapt the block to your stack (Tailwind, Vue, Svelte…):

````text
I want to add the “Strikethrough task item” block (Checkboxes) from AIMRAN Library to my project.

## What it is
A to-do row where checking the circle draws a line through the text and fades it out.

## Chosen settings
- Main color: #0071e3
- Secondary color: #8ec5ff
- Size: 16px (from 12 to 24px)
- Speed: 1x (from 0.5 to 2x)
- Text: "Buy milk"

## What I need
1. Add it to my project with the same look and animation as the reference code: same sizes, colours, radii, shadows, timings and easing.
2. It is built with plain HTML and CSS (the reference wraps it in a React component with its CSS). If my project uses something else (Vue, Svelte, Astro, plain HTML…), translate it without losing any behaviour. If I use Tailwind, turn the styles into classes; if not, keep the CSS in its own file.
3. Expose the settings above as props (or CSS variables) with those values as defaults.
4. Make it work well on phones: nothing that depends only on hover, touch targets of at least 44 px and no overflow on 320 px screens.
5. Make it look right in light and dark mode.
6. Keep it accessible: semantic HTML, roles and aria-* where needed, visible focus and keyboard support.
7. Respect prefers-reduced-motion: with reduced motion, no big animations but the same end result.

## Reference code
```tsx
import type { CSSProperties } from "react";

const css = `
.uv-ct {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  display: inline-flex;
  align-items: center;
  gap: .7em;
  padding: .8em 1.1em;
  border-radius: 1em;
  font-size: var(--s);
  color: var(--fg);
  background: color-mix(in srgb,var(--fg) 5%,transparent);
  cursor: pointer;
}

.uv-ct input {
  display: none;
}

.uv-ct span {
  display: grid;
  place-items: center;
  width: 1.4em;
  height: 1.4em;
  border-radius: 50%;
  box-shadow: inset 0 0 0 2px color-mix(in srgb,var(--fg) 30%,transparent);
  transition: all calc(0.3s / var(--k)) cubic-bezier(.34,1.56,.64,1);
}

.uv-ct svg {
  width: 65%;
  fill: none;
  stroke: #fff;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset calc(0.3s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

.uv-ct em {
  position: relative;
  font-style: normal;
  transition: opacity calc(0.4s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

.uv-ct em::after {
  content: "";
  position: absolute;
  left: -2%;
  top: 52%;
  width: 104%;
  height: 2px;
  border-radius: 2px;
  background: var(--c1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform calc(0.4s / var(--k)) cubic-bezier(.25,.1,.25,1);
}

.uv-ct input:checked~span {
  background: var(--c1);
  box-shadow: none;
}

.uv-ct input:checked~span svg {
  stroke-dashoffset: 0;
}

.uv-ct input:checked~em {
  opacity: .5;
}

.uv-ct input:checked~em::after {
  transform: scaleX(1);
}
`;

export default function ChkTask() {
  return (
    <>
      <style>{css}</style>
      <div
        style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "16px",
          "--k": "1",
          "--fg": "#1d1d1f",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <label className="uv-ct"><input type="checkbox" /><span><svg viewBox="0 0 24 24"><path d="M5 12.5l4.5 4.5L19 7.5" pathLength="1" /></svg></span><em>Buy milk</em></label>
      </div>
    </>
  );
}
```

Give me the complete final code, ready to paste, and tell me in one line where to put it in my project.
````