JSFiddle - React, Tailwind, and code Playground

by ysuper

HTML

<div class="textarea-container">
  <textarea name="foo">Some content here...</textarea>
  <button>Menu</button>
</div>

CSS

.textarea-container {
  position: relative;
}
.textarea-container textarea {
  width: 100%;
  height: 100%;
  box-sizing: border-box;
}
.textarea-container button {
  position: absolute;
  top: 0;
  right: 0;
}