div  class="_720kb-datepicker-calendar-header-right"
a class="_720kb-datepicker-calendar-month-button" href="javascript:void(0)"    ng-click="nextMonth()" title="Next"b class="_720kb-datepicker-default-button" b a div

by.css('a[ng-click="nextMonth()"]')
by.css('a[title="Next"]')
by.linkText('⟩')