Overflow-X , not working at all?

Question

I'm doing this proyect: http://jimenarguelles.mx. There is an odd situation with the overflow.

Please scroll the website in horizontal, that should not happen at all.

the class="sidebar" is position:absolute right:0

what do you think? Do I need to re-structure my css or html?

Answer 1

Try adding this onto 'body':

body {
    overflow-x:hidden;
    position:relative;
}