Given that we don't know the div's width beforehand?
My idea: Calculate the div 's width with JS, find a way to convert it to cols and the apply the css to the textarea onthe fly. But perhaps there 's no need to reinvent the wheel?
Thank you.
2 Answers
I advise flex over width: 100%, as 100% often does not account for borders, causing horizontal scrolls to appear.
<div style="display: flex">
<textarea style="flex: 1"></textarea>
</div>
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