# Elastic success toast

> A success message that bounces up from the bottom with a green check, stays a moment and slides away.

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

## Where to use it

Confirmation is what people need right after something important. In a banking app, after sending a transfer, “Transfer sent” pops up with its green check and a short line of detail, then leaves by itself. A success toast notification in HTML and CSS, with a springy entrance that feels reassuring rather than loud.

Use it for actions that went through, not for ones still in progress. Write the result, not the action: “€250 sent to Ana” says more than “Success”. If the message includes an amount or a reference, give it a little longer on screen.

## Code

### HTML

```html
<div class="uv-zs"><button class="fire">Show toast</button><div class="toast"><i>✓</i><span><b>Changes saved</b><small>Everything is in sync.</small></span></div></div>
```

### CSS

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

.uv-zs {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  position: relative;
  width: 20em;
  height: 14em;
  font-size: var(--s);
}

.uv-zs>.fire {
  position: absolute;
  left: 50%;
  top: 50%;
  translate: -50% -50%;
  padding: .8em 1.25em;
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  color: #fff;
  background: var(--c1);
  cursor: pointer;
  transition: transform calc(0.25s / var(--k)) cubic-bezier(.34,1.56,.64,1);
}

.uv-zs>.fire:active {
  transform: scale(.94);
}

.uv-zs .toast {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: .5em;
  display: flex;
  align-items: center;
  gap: .75em;
  width: 18em;
  padding: .85em;
  border-radius: 1em;
  color: var(--fg);
  background: var(--bg);
  box-shadow: inset 0 0 0 1px color-mix(in srgb,var(--fg) 10%,transparent),0 18px 45px rgba(0,0,0,.18);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%,3em) scale(.82);
}

.uv-zs .toast i {
  display: grid;
  place-items: center;
  width: 2.2em;
  height: 2.2em;
  border-radius: 50%;
  font-style: normal;
  color: #fff;
  background: #30a46c;
}

.uv-zs .toast span {
  display: grid;
  gap: .15em;
}

.uv-zs .toast small {
  opacity: .5;
}

.uv-zs .toast.show {
  animation: uv-zs calc(3.4s / var(--k)) cubic-bezier(.34,1.56,.64,1);
}

@keyframes uv-zs {
  0% {
    opacity: 0;
    transform: translate(-50%,3em) scale(.82);
  }
  12%,82% {
    opacity: 1;
    transform: translate(-50%,0) scale(1);
    pointer-events: auto;
  }
  100% {
    opacity: 0;
    transform: translate(-50%,1.5em) scale(.92);
  }
}
```

### JavaScript

```js
document.querySelectorAll(".uv-zs").forEach(el => {
  const b=el.querySelector(".fire"),t=el.querySelector(".toast");b.addEventListener("click",()=>{t.classList.remove("show");void t.offsetWidth;t.classList.add("show")});
});
```

### React

```tsx
// @ts-nocheck: setup() es JavaScript del DOM sin tipos, el mismo de la pestaña JS.
import { useEffect, useRef, type CSSProperties } from "react";

const css = `
.uv-zs {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  position: relative;
  width: 20em;
  height: 14em;
  font-size: var(--s);
}

.uv-zs>.fire {
  position: absolute;
  left: 50%;
  top: 50%;
  translate: -50% -50%;
  padding: .8em 1.25em;
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  color: #fff;
  background: var(--c1);
  cursor: pointer;
  transition: transform calc(0.25s / var(--k)) cubic-bezier(.34,1.56,.64,1);
}

.uv-zs>.fire:active {
  transform: scale(.94);
}

.uv-zs .toast {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: .5em;
  display: flex;
  align-items: center;
  gap: .75em;
  width: 18em;
  padding: .85em;
  border-radius: 1em;
  color: var(--fg);
  background: var(--bg);
  box-shadow: inset 0 0 0 1px color-mix(in srgb,var(--fg) 10%,transparent),0 18px 45px rgba(0,0,0,.18);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%,3em) scale(.82);
}

.uv-zs .toast i {
  display: grid;
  place-items: center;
  width: 2.2em;
  height: 2.2em;
  border-radius: 50%;
  font-style: normal;
  color: #fff;
  background: #30a46c;
}

.uv-zs .toast span {
  display: grid;
  gap: .15em;
}

.uv-zs .toast small {
  opacity: .5;
}

.uv-zs .toast.show {
  animation: uv-zs calc(3.4s / var(--k)) cubic-bezier(.34,1.56,.64,1);
}

@keyframes uv-zs {
  0% {
    opacity: 0;
    transform: translate(-50%,3em) scale(.82);
  }
  12%,82% {
    opacity: 1;
    transform: translate(-50%,0) scale(1);
    pointer-events: auto;
  }
  100% {
    opacity: 0;
    transform: translate(-50%,1.5em) scale(.92);
  }
}
`;

// Interacción en JavaScript del DOM: la misma que en la pestaña JS.
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function setup(el: any) {
  const b=el.querySelector(".fire"),t=el.querySelector(".toast");b.addEventListener("click",()=>{t.classList.remove("show");void t.offsetWidth;t.classList.add("show")});
}

export default function ToastSuccess() {
  const ref = useRef<HTMLDivElement>(null);

  useEffect(() => {
    const el = ref.current?.firstElementChild;
    return el ? setup(el) : undefined;
  }, []);

  return (
    <>
      <style>{css}</style>
      <div
        ref={ref} style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "16px",
          "--k": "1",
          "--fg": "#1d1d1f",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <div className="uv-zs"><button className="fire">Show toast</button><div className="toast"><i>✓</i><span><b>Changes saved</b><small>Everything is in sync.</small></span></div></div>
      </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 “Elastic success toast” block (Toasts) from AIMRAN Library to my project.

## What it is
A success message that bounces up from the bottom with a green check, stays a moment and slides away.

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

## 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
// @ts-nocheck: setup() es JavaScript del DOM sin tipos, el mismo de la pestaña JS.
import { useEffect, useRef, type CSSProperties } from "react";

const css = `
.uv-zs {
  font-family: -apple-system,BlinkMacSystemFont,"SF Pro Text","Inter",system-ui,sans-serif;
  position: relative;
  width: 20em;
  height: 14em;
  font-size: var(--s);
}

.uv-zs>.fire {
  position: absolute;
  left: 50%;
  top: 50%;
  translate: -50% -50%;
  padding: .8em 1.25em;
  border: 0;
  border-radius: 999px;
  font: inherit;
  font-weight: 600;
  color: #fff;
  background: var(--c1);
  cursor: pointer;
  transition: transform calc(0.25s / var(--k)) cubic-bezier(.34,1.56,.64,1);
}

.uv-zs>.fire:active {
  transform: scale(.94);
}

.uv-zs .toast {
  position: absolute;
  z-index: 2;
  left: 50%;
  bottom: .5em;
  display: flex;
  align-items: center;
  gap: .75em;
  width: 18em;
  padding: .85em;
  border-radius: 1em;
  color: var(--fg);
  background: var(--bg);
  box-shadow: inset 0 0 0 1px color-mix(in srgb,var(--fg) 10%,transparent),0 18px 45px rgba(0,0,0,.18);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%,3em) scale(.82);
}

.uv-zs .toast i {
  display: grid;
  place-items: center;
  width: 2.2em;
  height: 2.2em;
  border-radius: 50%;
  font-style: normal;
  color: #fff;
  background: #30a46c;
}

.uv-zs .toast span {
  display: grid;
  gap: .15em;
}

.uv-zs .toast small {
  opacity: .5;
}

.uv-zs .toast.show {
  animation: uv-zs calc(3.4s / var(--k)) cubic-bezier(.34,1.56,.64,1);
}

@keyframes uv-zs {
  0% {
    opacity: 0;
    transform: translate(-50%,3em) scale(.82);
  }
  12%,82% {
    opacity: 1;
    transform: translate(-50%,0) scale(1);
    pointer-events: auto;
  }
  100% {
    opacity: 0;
    transform: translate(-50%,1.5em) scale(.92);
  }
}
`;

// Interacción en JavaScript del DOM: la misma que en la pestaña JS.
// eslint-disable-next-line @typescript-eslint/no-explicit-any
function setup(el: any) {
  const b=el.querySelector(".fire"),t=el.querySelector(".toast");b.addEventListener("click",()=>{t.classList.remove("show");void t.offsetWidth;t.classList.add("show")});
}

export default function ToastSuccess() {
  const ref = useRef<HTMLDivElement>(null);

  useEffect(() => {
    const el = ref.current?.firstElementChild;
    return el ? setup(el) : undefined;
  }, []);

  return (
    <>
      <style>{css}</style>
      <div
        ref={ref} style={{
          "--c1": "#0071e3",
          "--c2": "#8ec5ff",
          "--s": "16px",
          "--k": "1",
          "--fg": "#1d1d1f",
          "--bg": "#f5f5f7",
        } as CSSProperties}
      >
        <div className="uv-zs"><button className="fire">Show toast</button><div className="toast"><i>✓</i><span><b>Changes saved</b><small>Everything is in sync.</small></span></div></div>
      </div>
    </>
  );
}
```

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