Create a CodePen demo for field-sizing: content

[Effeilo]

Description

browserux.css uses field-sizing: content to make textareas auto-resize as the user types, without JavaScript.
A dedicated CodePen would help demonstrate this feature in isolation.

Task

Create a CodePen showing a textarea that grows automatically as content is added, styled with browserux.css as the only stylesheet.

Acceptance criteria

• CodePen uses browserux.css via CDN: https://cdn.jsdelivr.net/gh/Effeilo/browserux.css/browserux.css
• No JavaScript used
• The pen includes a short comment explaining what field-sizing: content does
• Share the CodePen URL in this issue

Notes

CDN link: https://cdn.jsdelivr.net/gh/Effeilo/browserux.css/browserux.css
Demo reference: https://browseruxcss.com/demo/