Phone Friendly Webpage design

Today I made some changes to the site to allow a better experience to viewers with portable and handheld devices.
Now, when viewed on a narrow display, such as a phone in its upright, or portrait orientation, the Menu and Sidebar are shown as collapsable items at the top of the window, allowing the regular content to use the whole width of the display, making it easier to read. If you have difficulty viewing the site, please contact me to let me know the issue.