学习须知bug修改

client/src/pages/tips/learningTips.vue

 <template>
-  <div class="mian">
+  <div class="mian" id="catalog1">
     <div class="content fl">
       <div class="title">学习须知</div>
       <div class="cont-left">
         <div class="h2">学习须知</div>
-        <div class="explain" ref="catalog1" id="catalog1">
+        <div class="explain" ref="catalog1">
           <div class="tits">尊敬的学员：</div>
           <div class="txt">您好!欢迎您参加中国银行业协会“高级财富管理师”证书培训项目。为顺利完成学习及考试，请您阅读以下事项。预祝大家学习愉快，学有所获！</div>
         </div>