javascript - angular写组件，遍历之后用ng-style设置背景，文字图标应该怎么导入呀？

Question

   html页
<p class="row">
    <p class="page-header">
        <p class="col-md-offset-1 col-md-2 text-center" ng-repeat="nav in $ctrl.navs">
            <p class="height-120" ng-style="nav.background">
                <i class="icon md-globe-alt  font-size-50 margin-top-15 text-color-white" aria-hidden="true">
                    <p class="icon-title font-size-20 margin-top-15 text-color-white">{{nav.name}}</p></i>
            </p>
        </p>

JS页

(function(){
    angular.module('component.iconcontent',[])
        .component('componentIconcontent', {
            templateUrl: 'components/iconcontent/iconcontent.tpl.html',
            controller: componentIconcontentController,
            bindings: {
                navs: '<',
            }
        });
    function componentIconcontentController(){
        console.log(this.navs);
    }
})()