Robert is heavily reliant on his phone for modern communications. It's important that any layout have a mobile-friendly interface.
I am absolutely entranced with using GSS style sheets, because it takes advantage of such design principles as the Fibonacci Spiral (Golden Mean Ratio, illustrated above). But as gorgeous as they are, tests show they're not ready to be used out of the box for a person like Robert.
IE No Scroll
IE Scroll Screen Capture
Firefox Scroll Screen Capture
Item One: Mouse Over Links need onblur and onfocus
Item Two: Color contrast
Item Three: TH headers in Google tools?
Item Four: The hamburger menu no longer works properly.
Different Browsers do not always agree whether a change event should be fired for certain types of interaction
The change event is fired for input, select, and textarea elements when a change to the element's value is committed by the user. Unlike the input event, the change event is not necessarily fired for each change to an element's value.