Table is displaying properly on desktop but when we view on mobile it is not stacking correctly or the last column is duplicated. On this page http://hostingtechnomedia.com/~peirac/petroleum/current-petroleum-prices/ Sample 1 is what we want but on mobile, the bottom row goes below everything and the last column is duplicated. Sample 2 works on desktop but then the blue header disappears on mobile. Sample 3 is a last resort but then the bottom row does not stack properly and everything is duplicated. What am I doing wrong?