Re: [Zope] Captcha

But some people are using text-to-image products to render buttons and this is where you can use CSS instead.

ok, i see.

Btw. Text-to-image obfuscation makes it harder for machines to automatically fill out forms but not impossible.

of course ;-) this is just to prevent impossible amounts of spam. it is ok if it fails once in a while. so far i have not heard about a reliable algorithm for accurate image recognition.