You want an easy way of checking for images if they have alt text or not?
I wanted an easy way of seeing if the images used on a site have alt text or not. I seemed that I did not need to look far. Only to CSS3 specs. They have added negating (The negation pseudo-class selector) support for CSS. Here is an easy way of putting a border around an image if they do not have an alt text.
img:not([alt]){border: 1px dotted #c60}
This works in Firefox, not Opera or IE which is fine with me, I only want this when developing.
Works in Chrome also