chore(panel-group): fix width issue
chore(panel-group): fix width issue

kuiqiang/cvp,angeltrickz/prueba_vulgar,gunnertech/rednotebook,rschellius/vulgar,juansaucedo/develook,juansaucedo/develook,Spirovanni/ampdin,angeltrickz/prueba_vulgar,datatypevoid/ng2-mean-webpack,datatypevoid/ng2-mean-webpack,rschellius/vulgar,datatypevoid/vulgar,rschellius/vulgar,datatypevoid/vulgar,Spirovanni/ampdin,Spirovanni/ampdin,datatypevoid/vulgar,angeltrickz/prueba_vulgar,kuiqiang/cvp,kuiqiang/cvp,juansaucedo/develook,datatypevoid/ng2-mean-webpack