下拉菜单点不开
谁能帮我看下为什么下拉菜单点不开?要吐血了
1 2 3 4 5 6 7 8 9 10 11 | < li role = "presentation" class = "dropdown" > < a class = "dropdown-toggle" data-toggle = "dropdown" id = "dropdownMenu1" href = "#" >功能 < span class = "caret" ></ span > </ a > < ul class = "dropdown-menu" role = "menu" aria-labelledby = "dropdownMenu1" > < li role = "presentation" >< a role = "menuitem" tabindex = "-1" href = "#" >Action</ a ></ li > < li role = "presentation" >< a role = "menuitem" tabindex = "-1" href = "#" >Another action</ a ></ li > < li role = "presentation" >< a role = "menuitem" tabindex = "-1" href = "#" >Something else here</ a ></ li > < li role = "presentation" >< a role = "menuitem" tabindex = "-1" href = "#" >Separated link</ a ></ li > </ ul > </ li > |