完善导航栏

src/components/challenges/scorecard.vue

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+<template>
+  <el-row class="row-bg" justify="center">
+    <el-col :span="6">
+      <el-card shadow="always" class="scorecard">
+        <div class="left">
+          <h1>RANK</h1>
+
+
+        </div>
+
+      </el-card>
+    </el-col>
+  </el-row>
+</template>
+
+<script>
+import axios from "axios";
+
+export default {
+
+}
+</script>
+
+<style lang="less">
+
+</style>