fixing portrait only css
fixing portrait only css

switch-education/pxt,playi/pxt,switch-education/pxt,switch-education/pxt,switch-education/pxt,Microsoft/pxt,Microsoft/pxt,switchinnovations/pxt,switchinnovations/pxt,playi/pxt,playi/pxt,switch-education/pxt,switchinnovations/pxt,playi/pxt,Microsoft/pxt,Microsoft/pxt,switchinnovations/pxt,Microsoft/pxt