diff --git a/leave-school-vue/src/styles/element-ui.scss b/leave-school-vue/src/styles/element-ui.scss
new file mode 100644
index 0000000..ef7bb5d
--- /dev/null
+++ b/leave-school-vue/src/styles/element-ui.scss
@@ -0,0 +1,29 @@
+ //to reset element-ui default css
+.el-upload {
+  input[type="file"] {
+    display: none !important;
+  }
+}
+
+.el-upload__input {
+  display: none;
+}
+
+//暂时性解决diolag 问题 https://github.com/ElemeFE/element/issues/2461
+.el-dialog {
+  transform: none;
+  left: 0;
+  position: relative;
+  margin: 0 auto;
+}
+
+//element ui upload
+.upload-container {
+  .el-upload {
+    width: 100%;
+    .el-upload-dragger {
+      width: 100%;
+      height: 200px;
+    }
+  }
+}
diff --git a/leave-school-vue/src/styles/index.scss b/leave-school-vue/src/styles/index.scss
new file mode 100644
index 0000000..333a548
--- /dev/null
+++ b/leave-school-vue/src/styles/index.scss
@@ -0,0 +1,96 @@
+@import './variables.scss';
+@import './mixin.scss';
+@import './transition.scss';
+@import './element-ui.scss';
+@import './sidebar.scss';
+
+body {
+  height: 100%;
+  -moz-osx-font-smoothing: grayscale;
+  -webkit-font-smoothing: antialiased;
+  text-rendering: optimizeLegibility;
+  font-family: Helvetica Neue, Helvetica, PingFang SC, Hiragino Sans GB, Microsoft YaHei, Arial, sans-serif;
+}
+
+label {
+  font-weight: 700;
+}
+
+html {
+  height: 100%;
+  box-sizing: border-box;
+}
+
+#app{
+  height: 100%;
+}
+
+*,
+*:before,
+*:after {
+  box-sizing: inherit;
+}
+
+a,
+a:focus,
+a:hover {
+  cursor: pointer;
+  color: inherit;
+  outline: none;
+  text-decoration: none;
+}
+
+div:focus{
+  outline: none;
+ }
+
+a:focus,
+a:active {
+  outline: none;
+}
+
+a,
+a:focus,
+a:hover {
+  cursor: pointer;
+  color: inherit;
+  text-decoration: none;
+}
+
+.clearfix {
+  &:after {
+    visibility: hidden;
+    display: block;
+    font-size: 0;
+    content: " ";
+    clear: both;
+    height: 0;
+  }
+}
+
+//main-container全局样式
+.app-main{
+  min-height: 100%
+}
+
+.app-container {
+  padding: 20px;
+}
+
+.filter-container {
+  padding-bottom: 10px;
+  .filter-item {
+    display: inline-block;
+    vertical-align: middle;
+    margin-bottom: 10px;
+  }
+}
+
+//refine vue-multiselect plugin
+.multiselect {
+  line-height: 16px;
+}
+
+.multiselect--active {
+  z-index: 1000 !important;
+}
diff --git a/leave-school-vue/src/styles/mixin.scss b/leave-school-vue/src/styles/mixin.scss
new file mode 100644
index 0000000..601d7a0
--- /dev/null
+++ b/leave-school-vue/src/styles/mixin.scss
@@ -0,0 +1,27 @@
+@mixin clearfix {
+  &:after {
+    content: "";
+    display: table;
+    clear: both;
+  }
+}
+
+@mixin scrollBar {
+  &::-webkit-scrollbar-track-piece {
+    background: #d3dce6;
+  }
+  &::-webkit-scrollbar {
+    width: 6px;
+  }
+  &::-webkit-scrollbar-thumb {
+    background: #99a9bf;
+    border-radius: 20px;
+  }
+}
+
+@mixin relative {
+  position: relative;
+  width: 100%;
+  height: 100%;
+}
+
diff --git a/leave-school-vue/src/styles/sidebar.scss b/leave-school-vue/src/styles/sidebar.scss
new file mode 100644
index 0000000..8b55c87
--- /dev/null
+++ b/leave-school-vue/src/styles/sidebar.scss
@@ -0,0 +1,119 @@
+#app {
+  // 主体区域
+  .main-container {
+    min-height: 100%;
+    transition: margin-left .28s;
+    margin-left: 220px;
+    position: relative;
+  }
+  // 侧边栏
+  .sidebar-container {
+    transition: width 0.28s;
+    width: 220px !important;
+    height: 100%;
+    position: fixed;
+    font-size: 0px;
+    top: 0;
+    bottom: 0;
+    left: 0;
+    z-index: 1001;
+    overflow: hidden;
+    //reset element-ui css
+    .horizontal-collapse-transition {
+      transition: 0s width ease-in-out, 0s padding-left ease-in-out, 0s padding-right ease-in-out;
+    }
+    .scrollbar-wrapper {
+      height: calc(100% + 15px);
+      .el-scrollbar__view {
+        height: 100%;
+      }
+    }
+    .is-horizontal {
+      display: none;
+    }
+    a {
+      display: inline-block;
+      width: 100%;
+      overflow: hidden;
+    }
+    .svg-icon {
+      margin-right: 16px;
+    }
+    .el-menu {
+      border: none;
+      height: 100%;
+      width: 100% !important;
+    }
+  }
+  .hideSidebar {
+    .sidebar-container {
+      width: 36px !important;
+    }
+    .main-container {
+      margin-left: 36px;
+    }
+    .submenu-title-noDropdown {
+      padding-left: 10px !important;
+      position: relative;
+      .el-tooltip {
+        padding: 0 10px !important;
+      }
+    }
+    .el-submenu {
+      overflow: hidden;
+      &>.el-submenu__title {
+        padding-left: 10px !important;
+        .el-submenu__icon-arrow {
+          display: none;
+        }
+      }
+    }
+    .el-menu--collapse {
+      .el-submenu {
+        &>.el-submenu__title {
+          &>span {
+            height: 0;
+            width: 0;
+            overflow: hidden;
+            visibility: hidden;
+            display: inline-block;
+          }
+        }
+      }
+    }
+  }
+  .sidebar-container .nest-menu .el-submenu>.el-submenu__title,
+  .sidebar-container .el-submenu .el-menu-item {
+    min-width: 220px !important;
+    background-color: $subMenuBg !important;
+    &:hover {
+      background-color: $menuHover !important;
+    }
+  }
+  .el-menu--collapse .el-menu .el-submenu {
+    min-width: 220px !important;
+  }
+
+  //适配移动端
+  .mobile {
+    .main-container {
+      margin-left: 0px;
+    }
+    .sidebar-container {
+      transition: transform .28s;
+      width: 220px !important;
+    }
+    &.hideSidebar {
+      .sidebar-container {
+        transition-duration: 0.3s;
+        transform: translate3d(-220px, 0, 0);
+      }
+    }
+  }
+  .withoutAnimation {
+    .main-container,
+    .sidebar-container {
+      transition: none;
+    }
+  }
+}
diff --git a/leave-school-vue/src/styles/transition.scss b/leave-school-vue/src/styles/transition.scss
new file mode 100644
index 0000000..c4d47ad
--- /dev/null
+++ b/leave-school-vue/src/styles/transition.scss
@@ -0,0 +1,32 @@
+//globl transition css
+
+/*fade*/
+.fade-enter-active,
+.fade-leave-active {
+  transition: opacity 0.28s;
+}
+
+.fade-enter,
+.fade-leave-active {
+  opacity: 0;
+}
+
+/*fade*/
+.breadcrumb-enter-active,
+.breadcrumb-leave-active {
+  transition: all .5s;
+}
+
+.breadcrumb-enter,
+.breadcrumb-leave-active {
+  opacity: 0;
+  transform: translateX(20px);
+}
+
+.breadcrumb-move {
+  transition: all .5s;
+}
+
+.breadcrumb-leave-active {
+  position: absolute;
+}
diff --git a/leave-school-vue/src/styles/variables.scss b/leave-school-vue/src/styles/variables.scss
new file mode 100644
index 0000000..2fee827
--- /dev/null
+++ b/leave-school-vue/src/styles/variables.scss
@@ -0,0 +1,4 @@
+//sidebar
+$menuBg:#304156;
+$subMenuBg:#1f2d3d;
+$menuHover:#001528;