Changed default viewports for mobile devices.
Changed default viewports for mobile devices.

Brantone/node-build-monitor,Brantone/node-build-monitor,HelloHolyLi/node-build-monitor,Brantone/node-build-monitor,HelloHolyLi/node-build-monitor,HelloHolyLi/node-build-monitor,marcells/node-build-monitor,marcells/node-build-monitor