On Chrome on OS X at least, this webpage seems to be using jankyscroll.js <a href="http:&#x2F;&#x2F;zweig.co&#x2F;jankyscroll&#x2F;" rel="nofollow">http:&#x2F;&#x2F;zweig.co&#x2F;jankyscroll&#x2F;</a><p>You might want to look into if any Javascript is interfering with the scrolling.