style:增加左侧导航及头部导航栏

src/components/OpenPages.vue

@@ -0,0 +1,24 @@
+<template>
+  <div class="openPages">12345</div>
+</template>
+<script>
+import { reactive, toRefs } from "vue";
+export default {
+  name: "OpenPages",
+  setup() {
+    const state = reactive({});
+    return {
+      ...toRefs(state),
+    };
+  },
+};
+</script>
+<style scoped lang="scss">
+.openPages {
+  width: 100%;
+  height: 50px;
+  // display: flex;
+  background-color: rgba(255, 255, 255, 1);
+  box-shadow: 0px 8px 8px 0px rgba(118, 136, 166, 0.1);
+}
+</style>