Question:
The "cols" attribute is required in valid HTML but I don't see the benefit of using it. Do you?
Solution:1
If the client does not support CSS, it will still be able to see <textarea> with right width.
Solution:2
It determines how wide to render the element.
Solution:3
When browsers and html parsing software looks at HTML it will be looking for a set of mandatory attributes on a tag. Such as every <img> tag needs an alt="" attribute.
So when running your site through a HTML validator you need to make sure the mandatory attributes are in place else validation will fail..
Secondly when a user is using assistive technologies, they tend to turn off CSS/Javascript altogether so making sure you have cols="" in there is important. Screan readers and such may not be able to parse your webpage properly if it can't find required attributes for your markup.
Conclusion: Theres a bigger picture than just tweaking some stylesheet info. Make sure you conform to spec. If you want to style things pretty make sure you have sensible fallback for non-css webpages.
Solution:4
Check out this link.. Might help you -
http://www.highdots.com/forums/cascading-style-sheets/textarea-cols-width-261859.html
also this one -
http://www.highdots.com/forums/html/purpose-cols-rows-textarea-275801.html
Solution:5
"cols" using for increase the width of textarea` in html.
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