is now part of Shuffle™. You can use the editor on this domain, but we encourage you to try Shuffle →. Shuffle™ includes templates for Tailwind CSS, Bootstrap, Bulma, and Material-UI.
← Tailwind CSS classes list

Tailwind CSS class: .resize-x

<textarea class="resize-x bg-gray-200 m-2 block">X</textarea>

Preview

CSS source

.resize-x { resize: horizontal; }

More in Tailwind CSS Utilities