广告增加建议尺寸

src/components/ImageUpload/index.vue

@@ -66,6 +66,9 @@
 
     <!-- 上传提示 -->
     <div class="el-upload__tip" slot="tip" v-if="showTip">
+      <div style="color: #909399; margin-bottom: 8px;">
+        建议尺寸：700×286
+      </div>
       请上传
       <template v-if="fileSize">大小不超过 <b style="color: #f56c6c">{{ fileSize }}MB</b></template>
       <template v-if="fileType">格式为 <b style="color: #f56c6c">{{ fileType.join("/") }}</b></template>

src/views/bst/ad/index.vue

@@ -118,7 +118,9 @@
           </el-select>
         </el-form-item>
         <el-form-item label="广告图片" prop="picture">
+          <div class="upload-wrapper">
           <image-upload v-model="form.picture" :limit="1"/>
+          </div>
         </el-form-item>
         <el-form-item label="跳转类型" prop="urlType">
           <el-select v-model="form.urlType" placeholder="请选择跳转类型">