Merge branch 'dev1.2.1' of http://192.168.3.207:8080/jianyu/page_bigmember_pc into dev1.2.1

src/components/time-line/PoverTimeLine.vue

@@ -3,12 +3,12 @@
     <el-popover
       popper-class="poverStep"
       placement="bottom-start"
-      :open-delay="2000"
+      :open-delay="200"
       width="720"
       @show="show"
       trigger="hover">
       <slot name="content" slot="reference"></slot>
-      <el-card class="project-content">
+      <el-card class="project-content" v-show="stepList.length !== 0">
         <div slot="header" class="p-h-title">项目公告</div>
         <div class="p-c-main">
           <TimeLine poverType="card" :stepList="stepList" />