Long Answer with Show More

Long answers fold after a few lines with a soft fade and a Show more button, so the chat stays easy to scan.

Download the file Open full screen

One HTML file with the CSS and JavaScript inside. No library needed. MIT license.

Live preview

How to use it

Click Copy the code, or download the file.
Paste the CSS into your stylesheet, the HTML where you want the component, and the script before the closing body tag.
Change --accent at the top of the CSS to your brand color, then connect the events to your AI service.

What you get

Works in light and dark mode automatically
Keyboard friendly, with labels for screen readers
Fits phones, tablets and desktops
Respects the reduced motion setting
No framework, so it works with any stack

The code

<!DOCTYPE html>
<!--
  Long Answer with Show More: a free AI UI component
  From 100 Free AI UI Components by MM Rahman Bappi, MIT license
  https://mmrahmanbappi.github.io/100-free-ai-ui-components/

  How to use: copy the CSS, HTML and JavaScript below into your page.
  Colors are CSS variables at the top. Change --accent to match your brand.
  Light and dark themes follow the visitor's system setting, or set
  data-theme="dark" or data-theme="light" on the html element.
-->
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Long Answer with Show More | Free AI UI Component</title>
<meta name="description" content="Long answers fold after a few lines with a soft fade and a Show more button, so the chat stays easy to scan.">
<meta name="robots" content="noindex, follow">
<style>
:root{
  --accent:#5b5bd6; --accent-ink:#fff; --accent-soft:#ececfc;
  --bg:#f7f7f8; --surface:#fff; --surface-2:#f1f1f4; --ink:#17171c; --text:#3a3a44; --muted:#6c6c78;
  --line:#e3e3e8; --good:#15803d; --warn:#b45309; --bad:#c62828;
  --radius:14px; --shadow:0 1px 2px rgba(20,20,30,.06),0 8px 24px -12px rgba(20,20,30,.18);
  --font:system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,sans-serif; --mono:ui-monospace,"Cascadia Code",Menlo,Consolas,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){
  --accent:#8b8bff; --accent-ink:#0f0f16; --accent-soft:#25254a;
  --bg:#0f0f13; --surface:#18181f; --surface-2:#212129; --ink:#f3f3f6; --text:#d4d4dc; --muted:#9a9aa8;
  --line:#2c2c36; --good:#4ade80; --warn:#fbbf24; --bad:#f87171; --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px -12px rgba(0,0,0,.6);
}}
:root[data-theme=dark]{
  --accent:#8b8bff; --accent-ink:#0f0f16; --accent-soft:#25254a;
  --bg:#0f0f13; --surface:#18181f; --surface-2:#212129; --ink:#f3f3f6; --text:#d4d4dc; --muted:#9a9aa8;
  --line:#2c2c36; --good:#4ade80; --warn:#fbbf24; --bad:#f87171; --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px -12px rgba(0,0,0,.6);
}
*{box-sizing:border-box}
html,body{margin:0}
body{min-height:100vh;display:grid;grid-template-columns:minmax(0,1fr);place-items:center;padding:24px;background:var(--bg);color:var(--text);font:15px/1.5 var(--font);-webkit-font-smoothing:antialiased}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition:none!important}}
/* ---- component ---- */
.wrap{width:min(100%,660px);display:flex;flex-direction:column;gap:16px}
.ai,.me{display:flex;gap:12px;align-items:flex-start}
.me{flex-direction:row-reverse}
.av{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;flex:none;font-size:13px;font-weight:700}
.ai .av{background:var(--accent);color:var(--accent-ink)}.me .av{background:var(--surface-2);color:var(--ink);border:1px solid var(--line)}
.col{display:flex;flex-direction:column;gap:6px;min-width:0;max-width:calc(100% - 44px)}
.me .col{align-items:flex-end}
.bubble{background:var(--surface);border:1px solid var(--line);border-radius:4px 16px 16px 16px;padding:11px 15px;color:var(--text);box-shadow:var(--shadow);min-width:0;overflow-wrap:anywhere}
.me .bubble{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);border-radius:16px 4px 16px 16px;box-shadow:none}
.meta{font-size:12px;color:var(--muted)}
.tb{display:flex;gap:2px;align-items:center}
.tb button{display:inline-flex;align-items:center;gap:6px;border:0;background:none;color:var(--muted);height:30px;min-width:30px;padding:0 7px;border-radius:8px;cursor:pointer;font-size:13px}
.tb button:hover{background:var(--surface-2);color:var(--ink)}
.clip{position:relative;overflow:hidden;transition:max-height .3s ease}
.clip.shut{max-height:7.2em}
.clip.shut::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3em;background:linear-gradient(transparent,var(--surface))}
.clip p{margin:0 0 10px;line-height:1.6}
.more{align-self:flex-start;border:0;background:none;color:var(--accent);font-weight:600;font-size:14px;cursor:pointer;padding:4px 0}
</style>
</head>
<body>
<div class="wrap">
  <div class="ai"><div class="av" aria-hidden="true"><svg viewBox="0 0 24 24" width="16" height="16" fill="currentColor" aria-hidden="true"><path d="M12 2l1.8 6.2L20 10l-6.2 1.8L12 18l-1.8-6.2L4 10l6.2-1.8z"/></svg></div><div class="col"><div class="bubble">
    <div class="clip shut" id="clip">
      <p>Here is a simple plan to run your first 5K in eight weeks.</p>
      <p>Weeks 1 and 2: walk for 5 minutes, then alternate 1 minute of easy running with 2 minutes of walking, eight times. Do this three days a week.</p>
      <p>Weeks 3 and 4: run 2 minutes and walk 1 minute, eight times. Keep the running slow enough that you can still talk.</p>
      <p>Weeks 5 and 6: run 5 minutes and walk 1 minute, five times. Add one longer run on the weekend.</p>
      <p>Weeks 7 and 8: run 10 minutes, walk 1 minute, three times, then try the full 5K at an easy pace. Rest the day before.</p>
    </div>
    <button class="more" id="more" type="button" aria-expanded="false" aria-controls="clip">Show more</button>
  </div></div></div>
</div>
<script>
// Demo helper: add ?theme=dark or ?theme=light to the address to preview a theme.
(function(){var t=new URLSearchParams(location.search).get('theme');if(t)document.documentElement.dataset.theme=t;})();
var clip=document.getElementById('clip'),more=document.getElementById('more');
more.addEventListener('click',function(){var open=clip.classList.toggle('shut')===false;more.textContent=open?'Show less':'Show more';more.setAttribute('aria-expanded',open);});
</script>
</body>
</html>

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Long Answer with Show More

How to use it

What you get

The code

More chat messages components

Chat Bubbles

Formatted Answer

Code Block with Copy Button

Message Action Bar

Answer Versions

Inline Citations