提升图片预览z-index

src/views/projectManage/bugList/details/index.vue

@@ -438,7 +438,7 @@
                 </span>
               </div>
             </el-upload>
-            <el-image-viewer v-if="dialogVisible" :on-close="closeViewer" :url-list="srcList" />
+            <el-image-viewer v-if="dialogVisible" :on-close="closeViewer" :url-list="srcList" style="z-index: 999999;" />
           </section>
         </el-main>
         <el-main :style="type=='page'?{'padding': '20px 30px','margin-top': '10px'}:{'padding-left':'30px'}" class="layout_main">