diff --git a/src/client/theme-default/Layout.vue b/src/client/theme-default/Layout.vue
index 2175b7ab..12834237 100644
--- a/src/client/theme-default/Layout.vue
+++ b/src/client/theme-default/Layout.vue
@@ -8,16 +8,14 @@
       </NavBar>
       <ToggleSideBarButton @toggle="toggleSidebar" />
     </header>
-    <aside :class="{ open: openSideBar }">
-      <SideBar>
-        <template #top>
-          <slot name="sidebar-top" />
-        </template>
-        <template #bottom>
-          <slot name="sidebar-bottom" />
-        </template>
-      </SideBar>
-    </aside>
+    <SideBar :open="openSideBar">
+      <template #sidebar-top>
+        <slot name="sidebar-top" />
+      </template>
+      <template #sidebar-bottom>
+        <slot name="sidebar-bottom" />
+      </template>
+    </SideBar>
     <!-- TODO: make this button accessible -->
     <div class="sidebar-mask" @click="toggleSidebar(false)" />
     <main class="home" aria-labelledby="main-title" v-if="enableHome">
diff --git a/src/client/theme-default/components/NavBar.vue b/src/client/theme-default/components/NavBar.vue
index f38a6cac..96860dd1 100644
--- a/src/client/theme-default/components/NavBar.vue
+++ b/src/client/theme-default/components/NavBar.vue
@@ -42,7 +42,7 @@
 
 @media screen and (max-width: 719px) {
   .hide-mobile {
-    display: none;
+    display: none !important;
   }
 }
 </style>
diff --git a/src/client/theme-default/components/NavBarLink.vue b/src/client/theme-default/components/NavBarLink.vue
index 31027d29..6bde2b7d 100644
--- a/src/client/theme-default/components/NavBarLink.vue
+++ b/src/client/theme-default/components/NavBarLink.vue
@@ -1,70 +1,69 @@
 <template>
-  <div class="nav-item">
+  <div class="navbar-link">
     <a
-      class="nav-link"
+      class="item"
       :class="classes"
       :href="href"
       :target="target"
       :rel="rel"
       :aria-label="item.ariaLabel"
     >
-      {{ item.text }}
-      <OutboundLink v-if="isExternalLink" />
+      {{ item.text }} <OutboundLink v-if="isExternalLink" />
     </a>
   </div>
 </template>
 
 <script src="./NavBarLink"></script>
 
-<style>
-.nav-item {
+<style scoped>
+.navbar-link {
   position: relative;
-  display: inline-block;
-  margin-left: 1.5rem;
-  line-height: 2rem;
+  padding: 0 1.5rem;
 }
 
-@media screen and (max-width: 719px) {
-  .nav-item {
-    display: block;
-    margin-left: 0;
-    padding: 0.3rem 1.5rem;
+@media (min-width: 720px) {
+  .navbar-link {
+    padding: 0;
+  }
+
+  .navbar-link + .navbar-link,
+  .dropdown-wrapper + .navbar-link {
+    padding-left: 1.5rem;
   }
 }
 
-.nav-link {
+.item {
   display: block;
   margin-bottom: -2px;
-  border-bottom: 2px solid transparent;
-  font-size: 0.9rem;
-  font-weight: 500;
-  line-height: 1.4rem;
+  line-height: 40px;
+  font-size: 1rem;
+  font-weight: 600;
   color: var(--c-text);
   white-space: nowrap;
 }
 
-.nav-link:hover,
-.nav-link.active {
-  border-bottom-color: var(--c-brand);
+.item:hover,
+.item.active {
   text-decoration: none;
+  color: var(--c-brand);
 }
 
-.nav-link.external:hover {
-  border-bottom-color: transparent;
-}
+@media (min-width: 720px) {
+  .item {
+    border-bottom: 2px solid transparent;
+    line-height: 1.5rem;
+    font-size: .9rem;
+    font-weight: 500;
+  }
 
-@media screen and (max-width: 719px) {
-  .nav-link {
-    line-height: 1.7;
-    font-size: 1em;
-    font-weight: 600;
-    border-bottom: none;
-    margin-bottom: 0;
+  .item:hover,
+  .item.active {
+    color: var(--c-text);
+    border-bottom-color: var(--c-brand);
   }
 
-  .nav-link:hover,
-  .nav-link.active {
-    color: var(--c-brand);
+  .item.external:hover {
+    border-bottom-color: transparent;
   }
 }
 </style>
diff --git a/src/client/theme-default/components/NavBarLinks.vue b/src/client/theme-default/components/NavBarLinks.vue
index 55d8f5aa..cdcd6e45 100644
--- a/src/client/theme-default/components/NavBarLinks.vue
+++ b/src/client/theme-default/components/NavBarLinks.vue
@@ -1,5 +1,5 @@
 <template>
-  <nav class="nav-links" v-if="navData || repoInfo">
+  <nav v-if="navData || repoInfo" class="navbar-links">
     <template v-if="navData">
       <template v-for="item of navData">
         <NavDropdownLink v-if="item.items" :item="item" />
@@ -13,21 +13,17 @@
 
 <script src="./NavBarLinks"></script>
 
-<style>
-.nav-links {
-  display: flex;
-  align-items: center;
-  height: 35px;
-  list-style-type: none;
-  transform: translateY(1px);
+<style scoped>
+.navbar-links {
+  padding: 1rem 0;
+  border-bottom: 1px solid var(--c-divider);
 }
 
-@media screen and (max-width: 719px) {
-  .nav-links {
-    display: block;
-    height: auto;
-    padding: 0.5rem 0 1rem;
-    border-bottom: 1px solid var(--c-divider);
+@media (min-width: 720px) {
+  .navbar-links {
+    display: flex;
+    align-items: center;
+    border-bottom: 0;
   }
 }
 </style>
diff --git a/src/client/theme-default/components/Page.vue b/src/client/theme-default/components/Page.vue
index 06fbf201..43b2ae47 100644
--- a/src/client/theme-default/components/Page.vue
+++ b/src/client/theme-default/components/Page.vue
@@ -30,7 +30,7 @@ export default defineComponent({
 .page {
   margin: 0 auto;
   padding: 0 1.5rem 4rem;
-  max-width: 50rem;
+  max-width: 48rem;
 }
 
 .content {
diff --git a/src/client/theme-default/components/SideBar.ts b/src/client/theme-default/components/SideBar.ts
deleted file mode 100644
index 69eb7807..00000000
--- a/src/client/theme-default/components/SideBar.ts
+++ /dev/null
@@ -1,123 +0,0 @@
-import { useRoute, useSiteDataByRoute } from 'vitepress'
-import { computed } from 'vue'
-import { Header } from '../../../../types/shared'
-import { getPathDirName } from '../utils'
-import { DefaultTheme } from '../config'
-import { useActiveSidebarLinks } from '../composables/activeSidebarLink'
-import NavBarLinks from './NavBarLinks.vue'
-import { SideBarItem } from './SideBarItem'
-
-export interface ResolvedSidebarItem {
-  text: string
-  link?: string
-  isGroup?: boolean
-  children?: ResolvedSidebarItem[]
-}
-
-type ResolvedSidebar = ResolvedSidebarItem[]
-
-export default {
-  components: {
-    NavBarLinks,
-    SideBarItem
-  },
-
-  setup() {
-    const route = useRoute()
-    const siteData = useSiteDataByRoute()
-
-    useActiveSidebarLinks()
-
-    return {
-      items: computed(() => {
-        const {
-          headers,
-          frontmatter: { sidebar, sidebarDepth = 2 }
-        } = route.data
-
-        if (sidebar === 'auto') {
-          // auto, render headers of current page
-          return resolveAutoSidebar(headers, sidebarDepth)
-        } else if (Array.isArray(sidebar)) {
-          // in-page array config
-          return resolveArraySidebar(sidebar, sidebarDepth)
-        } else if (sidebar === false) {
-          return []
-        } else {
-          // no explicit page sidebar config
-          // check global theme config
-          const { sidebar: themeSidebar } = siteData.value.themeConfig
-          if (themeSidebar === 'auto') {
-            return resolveAutoSidebar(headers, sidebarDepth)
-          } else if (Array.isArray(themeSidebar)) {
-            return resolveArraySidebar(themeSidebar, sidebarDepth)
-          } else if (themeSidebar === false) {
-            return []
-          } else if (typeof themeSidebar === 'object') {
-            return resolveMultiSidebar(
-              themeSidebar,
-              route.path,
-              headers,
-              sidebarDepth
-            )
-          }
-        }
-      })
-    }
-  }
-}
-
-function resolveAutoSidebar(headers: Header[], depth: number): ResolvedSidebar {
-  const ret: ResolvedSidebar = []
-
-  if (headers === undefined) {
-    return []
-  }
-
-  let lastH2: ResolvedSidebarItem | undefined = undefined
-  headers.forEach(({ level, title, slug }) => {
-    if (level - 1 > depth) {
-      return
-    }
-
-    const item: ResolvedSidebarItem = {
-      text: title,
-      link: `#${slug}`
-    }
-    if (level === 2) {
-      lastH2 = item
-      ret.push(item)
-    } else if (lastH2) {
-      ;(lastH2.children || (lastH2.children = [])).push(item)
-    }
-  })
-
-  return ret
-}
-
-function resolveArraySidebar(
-  config: DefaultTheme.SideBarItem[],
-  depth: number
-): ResolvedSidebar {
-  return config
-}
-
-function resolveMultiSidebar(
-  config: DefaultTheme.MultiSideBarConfig,
-  path: string,
-  headers: Header[],
-  depth: number
-): ResolvedSidebar {
-  const paths = [path, Object.keys(config)[0]]
-  const item = paths.map((x) => config[getPathDirName(x)]).find(Boolean)
-
-  if (Array.isArray(item)) {
-    return resolveArraySidebar(item, depth)
-  }
-
-  if (item === 'auto') {
-    return resolveAutoSidebar(headers, depth)
-  }
-
-  return []
-}
diff --git a/src/client/theme-default/components/SideBar.vue b/src/client/theme-default/components/SideBar.vue
index 72ab630c..78ae8720 100644
--- a/src/client/theme-default/components/SideBar.vue
+++ b/src/client/theme-default/components/SideBar.vue
@@ -1,96 +1,72 @@
 <template>
-  <NavBarLinks class="show-mobile" />
+  <aside class="sidebar" :class="{ open }">
+    <div class="nav">
+      <NavBarLinks class="show-mobile" />
+    </div>
 
-  <slot name="top" />
+    <slot name="sidebar-top" />
 
-  <ul class="sidebar">
-    <SideBarItem v-for="item of items" :item="item" />
-  </ul>
+    <SideBarLinks />
 
-  <slot name="bottom" />
+    <slot name="sidebar-bottom" />
+  </aside>
 </template>
 
-<script src="./SideBar"></script>
+<script lang="ts">
+import { defineComponent } from 'vue'
+import NavBarLinks from './NavBarLinks.vue'
+import SideBarLinks from './SideBarLinks.vue'
 
-<style>
-.show-mobile {
-  display: none;
-}
+export default defineComponent({
+  components: {
+    NavBarLinks,
+    SideBarLinks
+  },
 
-@media screen and (max-width: 719px) {
-  .show-mobile {
-    display: block;
+  props: {
+    open: { type: Boolean, required: true }
   }
-}
-
-.sidebar,
-.sidebar-items {
-  list-style-type: none;
-  line-height: 2;
-  padding: 0;
-  margin: 0;
-}
+})
+</script>
 
+<style scoped>
 .sidebar {
-  padding: 1.5rem 0;
+  position: fixed;
+  top: var(--header-height);
+  bottom: 0;
+  left: 0;
+  z-index: var(--z-index-sidebar);
+  border-right: 1px solid var(--c-divider);
+  width: 16.4rem;
+  background-color: var(--c-bg);
+  overflow-y: auto;
+  transform: translateX(-100%);
+  transition: transform .25s ease;
 }
 
-.sidebar-data {
-  padding: 1.5rem 0;
-}
-
-@media screen and (max-width: 719px) {
-  .sidebar-data {
-    padding: 1rem;
+@media (min-width: 720px) {
+  .sidebar {
+    transform: translateX(0);
   }
 }
 
-.sidebar-items .sidebar-items {
-  padding-left: 1rem;
-}
-
-.sidebar-items .sidebar-items .sidebar-link {
-  border-left: 0;
-}
-
-.sidebar-items .sidebar-items .sidebar-link.active {
-  font-weight: 500;
-}
-
-.sidebar-items .sidebar-link {
-  padding: 0.35rem 1rem 0.35rem 2rem;
-  line-height: 1.4;
-  font-size: 0.95em;
-  font-weight: 400;
-}
-
-.sidebar-item + .sidebar-item {
-  padding-top: 0.75rem;
+@media (min-width: 960px) {
+  .sidebar {
+    width: 20rem;
+  }
 }
 
-.sidebar-items > .sidebar-item + .sidebar-item {
-  padding-top: 0;
+.sidebar.open {
+  transform: translateX(0);
 }
 
-.sidebar-link {
+.nav {
   display: block;
-  margin: 0;
-  border-left: 0.25rem solid transparent;
-  padding: 0.35rem 1.5rem 0.35rem 1.25rem;
-  line-height: 1.7;
-  font-size: 1.05em;
-  font-weight: 700;
-  color: var(--c-text);
-}
-
-a.sidebar-link:hover {
-  text-decoration: none;
-  color: var(--c-brand);
 }
 
-a.sidebar-link.active {
-  border-left-color: var(--c-brand);
-  font-weight: 600;
-  color: var(--c-brand);
+@media (min-width: 720px) {
+  .nav {
+    display: none;
+  }
 }
 </style>
diff --git a/src/client/theme-default/components/SideBarItem.ts b/src/client/theme-default/components/SideBarLink.ts
similarity index 58%
rename from src/client/theme-default/components/SideBarItem.ts
rename to src/client/theme-default/components/SideBarLink.ts
index 0d213a30..a0c987c4 100644
--- a/src/client/theme-default/components/SideBarItem.ts
+++ b/src/client/theme-default/components/SideBarLink.ts
@@ -1,33 +1,31 @@
-import { useRoute, useSiteData } from 'vitepress'
 import { FunctionalComponent, h, VNode } from 'vue'
-import { Header } from '../../../../types/shared'
+import { useRoute, useSiteData } from 'vitepress'
+import { Header } from '/@types/shared'
+import { DefaultTheme } from '../config'
 import { joinUrl, isActive } from '../utils'
-import { ResolvedSidebarItem } from './SideBar'
 
 interface HeaderWithChildren extends Header {
   children?: Header[]
 }
 
-export const SideBarItem: FunctionalComponent<{
-  item: ResolvedSidebarItem
+export const SideBarLink: FunctionalComponent<{
+  item: DefaultTheme.SideBarItem
 }> = (props) => {
-  const {
-    item: { link: relLink, text, children }
-  } = props
-
   const route = useRoute()
-  const siteData = useSiteData()
+  const site = useSiteData()
 
-  const link = resolveLink(siteData.value.base, relLink || '')
-  const active = isActive(route, link)
   const headers = route.data.headers
+  const text = props.item.text
+  const link = resolveLink(site.value.base, props.item.link)
+  const children = (props.item as DefaultTheme.SideBarGroup).children
+  const active = isActive(route, link)
   const childItems = createChildren(active, children, headers)
 
-  return h('li', { class: 'sidebar-item' }, [
+  return h('li', { class: 'sidebar-link' }, [
     h(
       link ? 'a' : 'p',
       {
-        class: { 'sidebar-link': true, active },
+        class: { 'sidebar-link-item': true, active },
         href: link
       },
       text
@@ -36,26 +34,30 @@ export const SideBarItem: FunctionalComponent<{
   ])
 }
 
-function resolveLink(base: string, path: string): string | undefined {
-  return path
-    ? // keep relative hash to the same page
-      path.startsWith('#')
-      ? path
-      : joinUrl(base, path)
-    : undefined
+function resolveLink(base: string, path?: string): string | undefined {
+  if (path === undefined) {
+    return path
+  }
+
+  // keep relative hash to the same page
+  if (path.startsWith('#')) {
+    return path
+  }
+
+  return joinUrl(base, path)
 }
 
 function createChildren(
   active: boolean,
-  children?: ResolvedSidebarItem[],
+  children?: DefaultTheme.SideBarItem[],
   headers?: Header[]
 ): VNode | null {
   if (children && children.length > 0) {
     return h(
       'ul',
-      { class: 'sidebar-items' },
+      { class: 'sidebar-links' },
       children.map((c) => {
-        return h(SideBarItem, { item: c })
+        return h(SideBarLink, { item: c })
       })
     )
   }
@@ -65,7 +67,7 @@ function createChildren(
     : null
 }
 
-function resolveHeaders(headers: Header[]): ResolvedSidebarItem[] {
+function resolveHeaders(headers: Header[]): DefaultTheme.SideBarItem[] {
   return mapHeaders(groupHeaders(headers))
 }
 
@@ -82,7 +84,7 @@ function groupHeaders(headers: Header[]): HeaderWithChildren[] {
   return headers.filter((h) => h.level === 2)
 }
 
-function mapHeaders(headers: HeaderWithChildren[]): ResolvedSidebarItem[] {
+function mapHeaders(headers: HeaderWithChildren[]): DefaultTheme.SideBarItem[] {
   return headers.map((header) => ({
     text: header.title,
     link: `#${header.slug}`,
diff --git a/src/client/theme-default/components/SideBarLinks.vue b/src/client/theme-default/components/SideBarLinks.vue
new file mode 100644
index 00000000..051c9a10
--- /dev/null
+++ b/src/client/theme-default/components/SideBarLinks.vue
@@ -0,0 +1,29 @@
+<template>
+  <ul v-if="items.length > 0" class="sidebar-links">
+    <SideBarLink
+      v-for="item of items"
+      :key="item.text"
+      :item="item"
+    />
+  </ul>
+</template>
+
+<script lang="ts">
+import { defineComponent } from 'vue'
+import { useSideBar } from '../composables/sideBar'
+import { SideBarLink } from './SideBarLink'
+
+export default defineComponent({
+  components: {
+    SideBarLink
+  },
+
+  setup() {
+    const items = useSideBar()
+
+    return {
+      items
+    }
+  }
+})
+</script>
diff --git a/src/client/theme-default/composables/sideBar.ts b/src/client/theme-default/composables/sideBar.ts
new file mode 100644
index 00000000..e9b53feb
--- /dev/null
+++ b/src/client/theme-default/composables/sideBar.ts
@@ -0,0 +1,77 @@
+import { computed } from 'vue'
+import { useRoute, useSiteDataByRoute } from 'vitepress'
+import { Header } from '/@types/shared'
+import { useActiveSidebarLinks } from '../composables/activeSidebarLink'
+import { getSideBarConfig } from '../support/sideBar'
+import { DefaultTheme } from '../config'
+
+export function useSideBar() {
+  const route = useRoute()
+  const site = useSiteDataByRoute()
+
+  useActiveSidebarLinks()
+
+  return computed(() => {
+    // at first, we'll check if we can find the sidebar setting in frontmatter.
+    const headers = route.data.headers
+    const frontSidebar = route.data.frontmatter.sidebar
+    const sidebarDepth = route.data.frontmatter.sidebarDepth
+
+    // if it's `false`, we'll just return an empty array here.
+    if (frontSidebar === false) {
+      return []
+    }
+
+    // if it's `atuo`, render headers of the current page
+    if (frontSidebar === 'auto') {
+      return resolveAutoSidebar(headers, sidebarDepth)
+    }
+
+    // now, there's no sidebar setting at frontmatter; let's see the configs
+    const themeSidebar = getSideBarConfig(
+      site.value.themeConfig.sidebar,
+      route.path
+    )
+
+    if (themeSidebar === false) {
+      return []
+    }
+
+    if (themeSidebar === 'auto') {
+      return resolveAutoSidebar(headers, sidebarDepth)
+    }
+
+    return themeSidebar
+  })
+}
+
+function resolveAutoSidebar(
+  headers: Header[],
+  depth: number
+): DefaultTheme.SideBarItem[] {
+  const ret: DefaultTheme.SideBarItem[] = []
+
+  if (headers === undefined) {
+    return []
+  }
+
+  let lastH2: DefaultTheme.SideBarItem | undefined = undefined
+  headers.forEach(({ level, title, slug }) => {
+    if (level - 1 > depth) {
+      return
+    }
+
+    const item: DefaultTheme.SideBarItem = {
+      text: title,
+      link: `#${slug}`
+    }
+    if (level === 2) {
+      lastH2 = item
+      ret.push(item)
+    } else if (lastH2) {
+      ;((lastH2 as any).children || ((lastH2 as any).children = [])).push(item)
+    }
+  })
+
+  return ret
+}
diff --git a/src/client/theme-default/index.ts b/src/client/theme-default/index.ts
index 42eff687..b9c753dd 100644
--- a/src/client/theme-default/index.ts
+++ b/src/client/theme-default/index.ts
@@ -2,6 +2,7 @@ import './styles/vars.css'
 import './styles/layout.css'
 import './styles/code.css'
 import './styles/custom-blocks.css'
+import './styles/sidebar-links.css'
 
 import { Theme } from 'vitepress'
 import Layout from './Layout.vue'
diff --git a/src/client/theme-default/styles/layout.css b/src/client/theme-default/styles/layout.css
index db1a5256..b189e428 100644
--- a/src/client/theme-default/styles/layout.css
+++ b/src/client/theme-default/styles/layout.css
@@ -197,7 +197,7 @@ blockquote > p {
   height: var(--header-height);
   background-color: #fff;
   border-bottom: 1px solid var(--c-divider);
-  z-index: 4;
+  z-index: var(--z-index-navbar);
   display: flex;
   align-items: center;
   justify-content: space-between;
@@ -210,18 +210,6 @@ blockquote > p {
   }
 }
 
-.theme aside {
-  position: fixed;
-  top: var(--header-height);
-  bottom: 0;
-  left: 0;
-  width: var(--sidebar-width);
-  border-right: 1px solid var(--c-divider);
-  background-color: #fff;
-  z-index: 3;
-  overflow-y: auto;
-}
-
 .theme.sidebar-open .sidebar-mask {
   display: block;
 }
@@ -246,17 +234,6 @@ blockquote > p {
   }
 }
 
-@media screen and (max-width: 719px) {
-  .theme aside {
-    transition: transform 0.2s ease;
-    transform: translateX(-100%);
-  }
-
-  .theme aside.open {
-    transform: translateX(0);
-  }
-}
-
 .sidebar-mask {
   z-index: 2;
   position: fixed;
@@ -271,7 +248,7 @@ blockquote > p {
 
 @media screen and (min-width: 960px) {
   .theme main {
-    padding-left: var(--sidebar-width);
+    padding-left: 20rem;
   }
 }
 
@@ -286,7 +263,7 @@ blockquote > p {
 
 @media screen and (max-width: 959px) {
   .theme main {
-    margin-left: var(--sidebar-width);
+    margin-left: 16.4rem;
   }
 }
 
diff --git a/src/client/theme-default/styles/sidebar-links.css b/src/client/theme-default/styles/sidebar-links.css
new file mode 100644
index 00000000..9faac174
--- /dev/null
+++ b/src/client/theme-default/styles/sidebar-links.css
@@ -0,0 +1,85 @@
+.sidebar-links {
+  margin: 0;
+  padding: 0;
+  list-style: none;
+}
+
+.sidebar-link-item {
+  display: block;
+  margin: 0;
+  border-left: .25rem solid transparent;
+  color: var(--c-text);
+}
+
+a.sidebar-link-item:hover {
+  text-decoration: none;
+  color: var(--c-brand);
+}
+
+a.sidebar-link-item.active {
+  color: var(--c-brand);
+}
+
+.sidebar > .sidebar-links {
+  padding: 1.5rem 0;
+}
+
+.sidebar > .sidebar-links > .sidebar-link + .sidebar-link {
+  padding-top: 1rem;
+}
+
+.sidebar > .sidebar-links > .sidebar-link > .sidebar-link-item {
+  padding: .35rem 1.5rem .35rem 1.25rem;
+  font-size: 1.1rem;
+  font-weight: 700;
+}
+
+.sidebar > .sidebar-links > .sidebar-link > a.sidebar-link-item.active {
+  border-left-color: var(--c-brand);
+  font-weight: 600;
+}
+
+.sidebar > .sidebar-links > .sidebar-link > .sidebar-links > .sidebar-link > .sidebar-link-item {
+  display: block;
+  padding: .35rem 1.5rem .35rem 2rem;
+  line-height: 1.4;
+  font-size: 1rem;
+  font-weight: 400;
+}
+
+.sidebar > .sidebar-links > .sidebar-link > .sidebar-links > .sidebar-link > a.sidebar-link-item.active {
+  border-left-color: var(--c-brand);
+  font-weight: 600;
+}
+
+.sidebar >
+.sidebar-links >
+.sidebar-link >
+.sidebar-links >
+.sidebar-link >
+.sidebar-links >
+.sidebar-link >
+.sidebar-link-item {
+  display: block;
+  padding: .3rem 1.5rem .3rem 3rem;
+  line-height: 1.4;
+  font-size: .9rem;
+  font-weight: 400;
+}
+
+.sidebar >
+.sidebar-links >
+.sidebar-link >
+.sidebar-links >
+.sidebar-link >
+.sidebar-links >
+.sidebar-link >
+.sidebar-links >
+.sidebar-link >
+.sidebar-link-item {
+  display: block;
+  padding: .3rem 1.5rem .3rem 4rem;
+  line-height: 1.4;
+  font-size: .9rem;
+  font-weight: 400;
+}
diff --git a/src/client/theme-default/styles/vars.css b/src/client/theme-default/styles/vars.css
index 044c3c6e..b37ec47a 100644
--- a/src/client/theme-default/styles/vars.css
+++ b/src/client/theme-default/styles/vars.css
@@ -22,12 +22,18 @@
 
   --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
 
+  /**
+   * Z Indexes
+   * --------------------------------------------------------------------- */
+
+  --z-index-navbar: 1100;
+  --z-index-sidebar: 1000;
+
   /**
    * Sizes
    * --------------------------------------------------------------------- */
 
   --header-height: 3.6rem;
-  --sidebar-width: 16.4rem;
 }
 
 /** Fallback Styles */
diff --git a/src/client/theme-default/support/sideBar.ts b/src/client/theme-default/support/sideBar.ts
index d0697181..fb90d6b1 100644
--- a/src/client/theme-default/support/sideBar.ts
+++ b/src/client/theme-default/support/sideBar.ts
@@ -34,6 +34,7 @@ export function getSideBarConfig(
 
   // get the very first segment of the path to compare with nulti sidebar keys
   // and make sure it's surrounded by slash
+  path = removeExtention(path)
   path = ensureStartingSlash(path).split('/')[1] || '/'
   path = ensureSlash(path)