Scroll desappearing on Polymer Website

[luanalbineli]

Sorry for my bad english, but i found a bug in the page http://www.polymer-project.org/docs/elements/material.html
When i opened the page the browser was not maximized, and the page was in the responsive mode. I clicked to open the left menu, and the right scroll desappeared (a feature to economize space), but in this time i maximized the browser, so the site enter in the desktop mode, but the right scroll continued desappeared.

[ebidel]

Switching the site over to use core-header-scroll-panel and core-drawer-panel will fix this. See Polymer/old-docs-site#550