Unable to set textarea width with CSS

Question

I have attempted to use this CSS to set the width of my form elements:

input[type=\"text\"], textarea { width:250px; }

If you look at this Fire

Answer 1

I was struggling with this kind of problem too, and this question was the first result of my googling. What finally worked for me was setting box-sizing: content-box for the textarea - Drupal 7 defaults this to border-box which causes the padding and border width to be subtracted from the size of the textarea.