 * update transition in mixins.less.
 * update transition in mixins.less.

ppmon/zui,a4435351/zui,fannyfinal/zui,xautchao/zui,fannyfinal/zui,Eric-Zhong/zui,XiongWanTai/zui,2947721120/zui,a4435351/zui,fhchina/zui,kunloon/zui,Eric-Zhong/zui,kunloon/zui,easysoft/zui,wenlian/zui,ppmon/zui,wenlian/zui,XiongWanTai/zui,elton0895/zui,404904728/ui_zui,easysoft/zui,xautchao/zui,elton0895/zui,2947721120/zui,fhchina/zui