style:refien css

src/components/Breadcrumb/index.vue

 <template>
-  <el-breadcrumb class="app-levelbar" separator="/">
+  <el-breadcrumb class="app-breadcrumb" separator="/">
     <transition-group name="breadcrumb">
       <el-breadcrumb-item v-for="(item,index)  in levelList" :key="item.path" v-if='item.meta.title'>
         <span v-if='item.redirect==="noredirect"||index==levelList.length-1' class="no-redirect">{{generateTitle(item.meta.title)}}</span>
@@ -45,7 +45,7 @@ export default {
 </script>
 
 <style rel="stylesheet/scss" lang="scss" scoped>
-  .app-levelbar.el-breadcrumb {
+  .app-breadcrumb.el-breadcrumb {
     display: inline-block;
     font-size: 14px;
     line-height: 50px;

src/views/login/index.vue

@@ -197,6 +197,7 @@ export default {
       font-size: 16px;
       color: $dark_gray;
       cursor: pointer;
+      user-select:none;
     }
     .thirdparty-button{
       position: absolute;