Can't click on input, textarea and button of form

Question

I can't click on elements of my form (textarea, input and button). I checked if there is any overlapping element by the Chrome tool, but don't find anything.

The address is: http://danielgroppo.com/chamonix/public_html/contato

Thank you!

Answer 1

This is because you use

z-index: -1;

on #content. See http://www.w3schools.com/cssref/pr_pos_z-index.asp