diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index 97482cf..3021a74 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -4,9 +4,9 @@ import TagPage from '@/pages/TagPage'
 import TopNav from '@/components/TopNav'
 import TagSidebar from '@/components/TagSidebar'
 import TagDetailSidebar from '@/components/TagDetailSidebar'
-import PostPage from '@/pages/PostPage'
-import PostNewPage from '@/pages/PostNewPage'
-import PostDetailPage from '@/pages/PostDetailPage'
+import PostPage from '@/pages/posts/PostPage'
+import PostNewPage from '@/pages/posts/PostNewPage'
+import PostDetailPage from '@/pages/posts/PostDetailPage'
 import WikiPage from '@/pages/WikiPage'
 import WikiNewPage from '@/pages/WikiNewPage'
 import WikiEditPage from '@/pages/WikiEditPage'
diff --git a/frontend/src/components/PostEditForm.tsx b/frontend/src/components/PostEditForm.tsx
index e3eb16c..c3e06f5 100644
--- a/frontend/src/components/PostEditForm.tsx
+++ b/frontend/src/components/PostEditForm.tsx
@@ -1,6 +1,7 @@
 import React, { useEffect, useState } from 'react'
 import axios from 'axios'
 import { API_BASE_URL } from '@/config'
+import { Button } from '@/components/ui/button'
 
 import type { Post, Tag } from '@/types'
 
@@ -64,9 +65,9 @@ export default ({ post, onSave }: Props) => {
         </div>
 
         {/* 送信 */}
-        <button onClick={handleSubmit}
+        <Button onClick={handleSubmit}
                 className="px-4 py-2 bg-blue-600 text-white rounded disabled:bg-gray-400">
           更新
-        </button>
+        </Button>
       </div>)
 }
diff --git a/frontend/src/components/TagDetailSidebar.tsx b/frontend/src/components/TagDetailSidebar.tsx
index c14bbb0..e004462 100644
--- a/frontend/src/components/TagDetailSidebar.tsx
+++ b/frontend/src/components/TagDetailSidebar.tsx
@@ -1,9 +1,11 @@
-import React, { useEffect, useState } from 'react'
 import axios from 'axios'
+import React, { useEffect, useState } from 'react'
 import { Link, useParams } from 'react-router-dom'
+
+import TagSearch from '@/components/TagSearch'
+import SubsectionTitle from '@/components/common/SubsectionTitle'
+import SidebarComponent from '@/components/layout/SidebarComponent'
 import { API_BASE_URL } from '@/config'
-import TagSearch from './TagSearch'
-import SidebarComponent from './layout/SidebarComponent'
 import { CATEGORIES } from '@/consts'
 
 import type { Category, Post, Tag } from '@/types'
@@ -45,17 +47,16 @@ export default ({ post }: Props) => {
       <SidebarComponent>
         <TagSearch />
         {CATEGORIES.map ((cat: Category) => cat in tags && (
-            <>
-              <h2>{categoryNames[cat]}</h2>
+            <div className="my-3">
+              <SubsectionTitle>{categoryNames[cat]}</SubsectionTitle>
               <ul>
                 {tags[cat].map (tag => (
-                    <li key={tag.id} className="mb-2">
-                      <Link to={`/posts?${ (new URLSearchParams ({ tags: tag.name })).toString () }`}
-                            className="text-blue-600 hover:underline">
+                    <li key={tag.id} className="mb-1">
+                      <Link to={`/posts?${ (new URLSearchParams ({ tags: tag.name })).toString () }`}>
                         {tag.name}
                       </Link>
                     </li>))}
               </ul>
-            </>))}
+            </div>))}
       </SidebarComponent>)
 }
diff --git a/frontend/src/components/TagSearchBox.tsx b/frontend/src/components/TagSearchBox.tsx
index 3f5e3c3..0a20031 100644
--- a/frontend/src/components/TagSearchBox.tsx
+++ b/frontend/src/components/TagSearchBox.tsx
@@ -1,7 +1,8 @@
 import React, { useEffect, useState } from 'react'
 import axios from 'axios'
 import { Link, useNavigate, useLocation } from 'react-router-dom'
-import { API_BASE_URL } from '../config'
+import { API_BASE_URL } from '@/config'
+import { cn } from '@/lib/utils'
 
 import type { Tag } from '@/types'
 
@@ -23,8 +24,10 @@ const TagSearchBox: React.FC = (props: Props) => {
       <ul className="absolute left-0 right-0 z-50 w-full bg-gray-800 border border-gray-600 rounded shadow">
         {suggestions.map ((tag, i) => (
             <li key={tag.id}
-                className={`px-3 py-2 cursor-pointer ${
-                    i === activeIndex ? 'bg-blue-600 text-white' : 'hover:bg-gray-700' }`}
+                className={cn ('px-3 py-2 cursor-pointer', 
+                               (i === activeIndex
+                                ? 'bg-blue-600 text-white'
+                                : 'hover:bg-gray-700'))}
                 onMouseDown={() => onSelect (tag)}
             >
               {tag.name}
diff --git a/frontend/src/components/TagSidebar.tsx b/frontend/src/components/TagSidebar.tsx
index 842bebb..c2f05fa 100644
--- a/frontend/src/components/TagSidebar.tsx
+++ b/frontend/src/components/TagSidebar.tsx
@@ -2,8 +2,9 @@ import React, { useEffect, useState } from 'react'
 import axios from 'axios'
 import { Link, useParams } from 'react-router-dom'
 import { API_BASE_URL } from '@/config'
-import TagSearch from './TagSearch'
-import SidebarComponent from './layout/SidebarComponent'
+import TagSearch from '@/components/TagSearch'
+import SidebarComponent from '@/components/layout/SidebarComponent'
+import SectionTitle from '@/components/common/SectionTitle'
 
 import type { Post, Tag } from '@/types'
 
@@ -12,12 +13,6 @@ type TagByCategory = { [key: string]: Tag[] }
 type Props = { posts: Post[] }
 
 
-const tagNameMap: { [key: string]: string } = {
-    general:    '一般',
-    deerjikist: 'ニジラー',
-    nico:       'ニコニコタグ' }
-
-
 export default ({ posts }: Props) => {
   const [tags, setTags] = useState<TagByCategory> ({ })
   const [tagsCounts, setTagsCounts] = useState<{ [key: number]: number }> ({ })
@@ -47,18 +42,20 @@ export default ({ posts }: Props) => {
   return (
       <SidebarComponent>
         <TagSearch />
-        {['general', 'deerjikist', 'nico'].map (cat => cat in tags && <>
-            <h2>{tagNameMap[cat]}</h2>
-            <ul>
-              {tags[cat].map (tag => (
-                  <li key={tag.id} className="mb-2">
-                    <Link to={`/posts?${ (new URLSearchParams ({ tags: tag.name })).toString () }`}
-                          className="text-blue-600 hover:underline">
-                      {tag.name}
-                    </Link>
-                    <span className="ml-1">{tagsCounts[tag.id]}</span>
-                  </li>))}
-            </ul>
-            </>)}
+        <SectionTitle>タグ</SectionTitle>
+        <ul>
+          {['general', 'deerjikist', 'nico'].map (cat => cat in tags && (
+              <>
+                {tags[cat].map (tag => (
+                    <li key={tag.id} className="mb-1">
+                      <Link to={`/posts?${ (new URLSearchParams ({ tags: tag.name })).toString () }`}>
+                        {tag.name}
+                      </Link>
+                      <span className="ml-1">{tagsCounts[tag.id]}</span>
+                    </li>))}
+              </>))}
+        </ul>
+        <SectionTitle>関聯</SectionTitle>
+        <Link>ランダム</Link>
       </SidebarComponent>)
 }
diff --git a/frontend/src/components/TopNav.tsx b/frontend/src/components/TopNav.tsx
index 1d72c88..4be8d20 100644
--- a/frontend/src/components/TopNav.tsx
+++ b/frontend/src/components/TopNav.tsx
@@ -2,7 +2,7 @@ import React, { useState, useEffect } from 'react'
 import { Link, useLocation, useNavigate, useParams } from 'react-router-dom'
 import SettingsDialogue from './SettingsDialogue'
 import { Button } from './ui/button'
-import clsx from 'clsx'
+import { cn } from '@/lib/utils'
 import { WikiIdBus } from '@/lib/eventBus/WikiIdBus'
 
 import type { User } from '@/types'
@@ -33,10 +33,10 @@ const TopNav: React.FC = ({ user, setUser }: Props) => {
                                                title: string
                                                menu?: Menu
                                                base?: string }) => (
-      <Link to={to} className={clsx ('hover:text-orange-500 h-full flex items-center',
-                                     (location.pathname.startsWith (base ?? to)
-                                      ? 'bg-gray-700 px-4 font-bold'
-                                      : 'px-2'))}>
+      <Link to={to} className={cn ('hover:text-orange-500 h-full flex items-center',
+                                   (location.pathname.startsWith (base ?? to)
+                                    ? 'bg-gray-700 px-4 font-bold'
+                                    : 'px-2'))}>
         {title}
       </Link>)
 
diff --git a/frontend/src/components/common/Form.tsx b/frontend/src/components/common/Form.tsx
new file mode 100644
index 0000000..73169d3
--- /dev/null
+++ b/frontend/src/components/common/Form.tsx
@@ -0,0 +1,9 @@
+import React from 'react'
+
+type Props = { children: React.ReactNode }
+
+
+export default ({ children }: Props) => (
+    <div className="max-w-xl mx-auto p-4 space-y-4">
+      {children}
+    </div>)
diff --git a/frontend/src/components/common/Label.tsx b/frontend/src/components/common/Label.tsx
new file mode 100644
index 0000000..35d3b20
--- /dev/null
+++ b/frontend/src/components/common/Label.tsx
@@ -0,0 +1,28 @@
+import React from 'react'
+
+type Props = { children:  React.ReactNode
+               checkBox?: { label:    string
+                            checked:  boolean
+                            onChange: (event: React.ChangeEvent<HTMLInputElement>) => void } }
+
+
+export default ({ children, checkBox }: Props) => {
+  if (!(checkBox))
+    {
+      return (
+          <label className="block font-semibold mb-1">
+            {children}
+          </label>)
+    }
+
+  return (
+      <div className="flex gap-2 mb-1">
+        <label className="flex-1 block font-semibold">{children}</label>
+        <label className="flex items-center block gap-1">
+          <input type="checkbox"
+                 checked={checkBox.checked}
+                 onChange={checkBox.onChange} />
+          {checkBox.label}
+        </label>
+      </div>)
+}
diff --git a/frontend/src/components/common/PageTitle.tsx b/frontend/src/components/common/PageTitle.tsx
new file mode 100644
index 0000000..3ecf581
--- /dev/null
+++ b/frontend/src/components/common/PageTitle.tsx
@@ -0,0 +1,9 @@
+import React from 'react'
+
+type Props = { children: React.ReactNode }
+
+
+export default ({ children }: Props) => (
+    <h1 className="text-2xl font-bold mb-2">
+      {children}
+    </h1>)
diff --git a/frontend/src/components/common/SectionTitle.tsx b/frontend/src/components/common/SectionTitle.tsx
new file mode 100644
index 0000000..fb8b6bf
--- /dev/null
+++ b/frontend/src/components/common/SectionTitle.tsx
@@ -0,0 +1,9 @@
+import React from 'react'
+
+type Props = { children: React.ReactNode }
+
+
+export default ({ children }: Props) => (
+    <h2 className="text-xl my-4">
+      {children}
+    </h2>)
diff --git a/frontend/src/components/common/SubsectionTitle.tsx b/frontend/src/components/common/SubsectionTitle.tsx
new file mode 100644
index 0000000..17141ed
--- /dev/null
+++ b/frontend/src/components/common/SubsectionTitle.tsx
@@ -0,0 +1,9 @@
+import React from 'react'
+
+type Props = { children: React.ReactNode }
+
+
+export default ({ children }: Props) => (
+    <h3 className="my-2">
+      {children}
+    </h3>)
diff --git a/frontend/src/components/common/TabGroup.tsx b/frontend/src/components/common/TabGroup.tsx
index c4cab35..4d789cc 100644
--- a/frontend/src/components/common/TabGroup.tsx
+++ b/frontend/src/components/common/TabGroup.tsx
@@ -1,4 +1,5 @@
 import React, { useState } from 'react'
+import { cn } from '@/lib/utils'
 
 type TabProps = { name:     string
                   init?:    boolean
@@ -6,7 +7,7 @@ type TabProps = { name:     string
 
 type Props = { children: React.ReactElement<{ name: string }>[] }
 
-export const Tab = ({ children }: TabProps) => children
+export const Tab = ({ children }: TabProps) => <>{children}</>
 
 
 export default ({ children }: Props) => {
@@ -23,7 +24,7 @@ export default ({ children }: Props) => {
           {tabs.map ((tab, i) => (
               <a key={i}
                  href="#"
-                 className={`text-blue-400 hover:underline ${ i === current ? 'font-bold' : '' }`}
+                 className={cn (i === current && 'font-bold')}
                  onClick={ev => {
                    ev.preventDefault ()
                    setCurrent (i)
diff --git a/frontend/src/pages/WikiDetailPage.tsx b/frontend/src/pages/WikiDetailPage.tsx
index e642f19..5f9e0f4 100644
--- a/frontend/src/pages/WikiDetailPage.tsx
+++ b/frontend/src/pages/WikiDetailPage.tsx
@@ -6,6 +6,7 @@ import axios from 'axios'
 import { API_BASE_URL, SITE_TITLE } from '@/config'
 import MainArea from '@/components/layout/MainArea'
 import { WikiIdBus } from '@/lib/eventBus/WikiIdBus'
+import PageTitle from '@/components/common/PageTitle'
 
 import type { WikiPage } from '@/types'
 
@@ -45,20 +46,18 @@ export default () => {
         {(wikiPage && version) && (
             <div className="text-sm flex gap-3 items-center justify-center border border-gray-700 rounded px-2 py-1 mb-4">
               {wikiPage.pred ? (
-                  <Link to={`/wiki/${ title }?version=${ wikiPage.pred }`}
-                        className="text-blue-400 hover:underline">
-                    &lt; 前
-                  </Link>) : <>&lt; 前</>}
+                  <Link to={`/wiki/${ title }?version=${ wikiPage.pred }`}>
+                    &lt; 古
+                  </Link>) : <>(最古)</>}
 
               <span>{wikiPage.updated_at}</span>
 
               {wikiPage.succ ? (
-                  <Link to={`/wiki/${ title }?version=${ wikiPage.succ }`}
-                        className="text-blue-400 hover:underline">
-                    後 &gt;
-                  </Link>) : <>後 &gt;</>}
+                  <Link to={`/wiki/${ title }?version=${ wikiPage.succ }`}>
+                    新 &gt;
+                  </Link>) : <>(最新)</>}
             </div>)}
-        <h1>{title}</h1>
+        <PageTitle>{title}</PageTitle>
         <div className="prose mx-auto p-4">
           {wikiPage === undefined ? 'Loading...' : (
               <>
diff --git a/frontend/src/pages/WikiDiffPage.tsx b/frontend/src/pages/WikiDiffPage.tsx
index 5241a20..70eee6a 100644
--- a/frontend/src/pages/WikiDiffPage.tsx
+++ b/frontend/src/pages/WikiDiffPage.tsx
@@ -1,7 +1,9 @@
+import axios from 'axios'
 import { useEffect, useState } from 'react'
 import { Helmet } from 'react-helmet'
 import { Link, useLocation, useParams } from 'react-router-dom'
-import axios from 'axios'
+
+import PageTitle from '@/components/common/PageTitle'
 import MainArea from '@/components/layout/MainArea'
 import { API_BASE_URL, SITE_TITLE } from '@/config'
 
@@ -29,7 +31,7 @@ export default () => {
         <Helmet>
           <title>{`Wiki 差分: ${ diff?.title } | ${ SITE_TITLE }`}</title>
         </Helmet>
-        <h1>{diff?.title}</h1>
+        <PageTitle>{diff?.title}</PageTitle>
         <div className="prose mx-auto p-4">
           {diff ? (
               diff.diff.map (d => (
diff --git a/frontend/src/pages/WikiHistoryPage.tsx b/frontend/src/pages/WikiHistoryPage.tsx
index 372a69f..0193efa 100644
--- a/frontend/src/pages/WikiHistoryPage.tsx
+++ b/frontend/src/pages/WikiHistoryPage.tsx
@@ -44,8 +44,7 @@ export default () => {
                         </Link>)}
                   </td>
                   <td className="p-2">
-                    <Link to={`/wiki/${ encodeURIComponent (change.wiki_page.title) }?version=${ change.sha }`}
-                          className="text-blue-400 hover:underline">
+                    <Link to={`/wiki/${ encodeURIComponent (change.wiki_page.title) }?version=${ change.sha }`}>
                       {change.wiki_page.title}
                     </Link>
                   </td>
@@ -63,8 +62,7 @@ export default () => {
                     }) ()}
                   </td>
                   <td className="p-2">
-                    <Link to={`/users/${ change.user.id }`}
-                          className="text-blue-400 hover:underline">
+                    <Link to={`/users/${ change.user.id }`}>
                       {change.user.name}
                     </Link>
                     <br />
diff --git a/frontend/src/pages/WikiPage.tsx b/frontend/src/pages/WikiPage.tsx
index 9a52752..964760c 100644
--- a/frontend/src/pages/WikiPage.tsx
+++ b/frontend/src/pages/WikiPage.tsx
@@ -4,6 +4,7 @@ import { Link } from 'react-router-dom'
 import axios from 'axios'
 import MainArea from '@/components/layout/MainArea'
 import { API_BASE_URL, SITE_TITLE } from '@/config'
+import SectionTitle from '@/components/common/SectionTitle'
 
 import type { Category, WikiPage } from '@/types'
 
@@ -34,7 +35,7 @@ export default () => {
           <title>{`Wiki | ${ SITE_TITLE }`}</title>
         </Helmet>
         <div className="max-w-xl">
-          <h2 className="text-xl mb-4">Wiki</h2>
+          <SectionTitle className="text-xl mb-4">Wiki</SectionTitle>
           <form onSubmit={handleSearch} className="space-y-2">
             {/* タイトル */}
             <div>
@@ -76,8 +77,7 @@ export default () => {
               {results.map (page => (
                   <tr key={page.id}>
                     <td className="p-2">
-                      <Link to={`/wiki/${ encodeURIComponent (page.title) }`}
-                            className="text-blue-400 hover:underline">
+                      <Link to={`/wiki/${ encodeURIComponent (page.title) }`}>
                         {page.title}
                       </Link>
                     </td>
diff --git a/frontend/src/pages/PostDetailPage.tsx b/frontend/src/pages/posts/PostDetailPage.tsx
similarity index 78%
rename from frontend/src/pages/PostDetailPage.tsx
rename to frontend/src/pages/posts/PostDetailPage.tsx
index df20663..5b97320 100644
--- a/frontend/src/pages/PostDetailPage.tsx
+++ b/frontend/src/pages/posts/PostDetailPage.tsx
@@ -65,7 +65,14 @@ export default ({ user }: Props) => {
       setEditing (true)
   }, [editing])
 
-  const url = post ? new URL (post.url) : undefined
+  const url = post ? new URL (post.url) : null
+  const nicoFlg = url?.hostname.split ('.').slice (-2).join ('.') === 'nicovideo.jp'
+  const videoId = (nicoFlg
+                   ? url.pathname.match (/(?<=\/watch\/)[a-zA-Z0-9]+?(?=\/|$)/)[0]
+                   : '')
+  const viewedClass = (post?.viewed
+                       ? 'bg-blue-600 hover:bg-blue-700'
+                       : 'bg-gray-500 hover:bg-gray-600')
 
   return (
       <>
@@ -76,23 +83,15 @@ export default ({ user }: Props) => {
         <MainArea>
           {post
            ? (
-              <div className="p-4">
-                {(() => {
-                  if (url.hostname.split ('.').slice (-2).join ('.') === 'nicovideo.jp')
-                    {
-                      return (
-                          <NicoViewer
-                            id={url.pathname.match (
-                                  /(?<=\/watch\/)[a-zA-Z0-9]+?(?=\/|$)/)[0]}
-                            width="640"
-                            height="360" />)
-                    }
-                  else
-                    return <img src={post.thumbnail} alt={post.url} className="mb-4 w-full" />
-                }) ()}
+              <>
+                {nicoFlg
+                 ? (
+                    <NicoViewer id={videoId}
+                                width="640"
+                                height="360" />)
+                 : <img src={post.thumbnail} alt={post.url} className="mb-4 w-full" />}
                 <Button onClick={changeViewedFlg}
-                        className={cn ('text-white',
-                                       post.viewed ? 'bg-blue-600 hover:bg-blue-700' : 'bg-gray-500 hover:bg-gray-600')}>
+                        className={cn ('text-white', viewedClass)}>
                   {post.viewed ? '閲覧済' : '未閲覧'}
                 </Button>
                 <TabGroup>
@@ -105,7 +104,7 @@ export default ({ user }: Props) => {
                                     }} />
                     </Tab>}
                 </TabGroup>
-              </div>)
+              </>)
            : 'Loading...'}
         </MainArea>
       </>)
diff --git a/frontend/src/pages/PostNewPage.tsx b/frontend/src/pages/posts/PostNewPage.tsx
similarity index 84%
rename from frontend/src/pages/PostNewPage.tsx
rename to frontend/src/pages/posts/PostNewPage.tsx
index ad619a4..9f46c42 100644
--- a/frontend/src/pages/PostNewPage.tsx
+++ b/frontend/src/pages/posts/PostNewPage.tsx
@@ -8,6 +8,9 @@ import { Button } from '@/components/ui/button'
 import { toast } from '@/components/ui/use-toast'
 import { cn } from '@/lib/utils'
 import MainArea from '@/components/layout/MainArea'
+import Form from '@/components/common/Form'
+import PageTitle from '@/components/common/PageTitle'
+import Label from '@/components/common/Label'
 
 import type { Post, Tag } from '@/types'
 
@@ -115,12 +118,12 @@ export default () => {
         <Helmet>
           <title>{`広場に投稿を追加 | ${ SITE_TITLE }`}</title>
         </Helmet>
-        <div className="max-w-xl mx-auto p-4 space-y-4">
-          <h1 className="text-2xl font-bold mb-2">広場に投稿を追加する</h1>
+        <Form>
+          <PageTitle>広場に投稿を追加する</PageTitle>
 
           {/* URL */}
           <div>
-            <label className="block font-semibold mb-1">URL</label>
+            <Label>URL</Label>
             <input type="text"
                    placeholder="例：https://www.nicovideo.jp/watch/..."
                    value={url}
@@ -131,15 +134,12 @@ export default () => {
 
           {/* タイトル */}
           <div>
-            <div className="flex gap-2 mb-1">
-              <label className="flex-1 block font-semibold">タイトル</label>
-              <label className="flex items-center block gap-1">
-                <input type="checkbox"
-                       checked={titleAutoFlg}
-                       onChange={e => setTitleAutoFlg (e.target.checked)} />
-                自動
-              </label>
-            </div>
+            <Label checkBox={{
+                label:    '自動',
+                checked:  titleAutoFlg,
+                onChange: ev => setTitleAutoFlg (ev.target.checked)}}>
+              タイトル
+            </Label>
             <input type="text"
                    className="w-full border rounded p-2"
                    value={title}
@@ -150,15 +150,12 @@ export default () => {
 
           {/* サムネール */}
           <div>
-            <div className="flex gap-2 mb-1">
-              <label className="block font-semibold flex-1">サムネール</label>
-              <label className="flex items-center gap-1">
-                <input type="checkbox"
-                       checked={thumbnailAutoFlg}
-                       onChange={e => setThumbnailAutoFlg (e.target.checked)} />
-                自動
-              </label>
-            </div>
+            <Label checkBox={{
+                label:    '自動',
+                checked:  thumbnailAutoFlg,
+                onChange: ev => setThumbnailAutoFlg (ev.target.checked)}}>
+              サムネール
+            </Label>
             {thumbnailAutoFlg
              ? (thumbnailLoading
                 ? <p className="text-gray-500 text-sm">Loading...</p>
@@ -185,7 +182,7 @@ export default () => {
 
           {/* タグ */}
           <div>
-            <label className="block font-semibold">タグ</label>
+            <Label>タグ</Label>
             <select multiple
                     value={tagIds.map (String)}
                     onChange={e => {
@@ -201,11 +198,11 @@ export default () => {
           </div>
 
           {/* 送信 */}
-          <button onClick={handleSubmit}
+          <Button onClick={handleSubmit}
                   className="px-4 py-2 bg-blue-600 text-white rounded disabled:bg-gray-400"
                   disabled={titleLoading || thumbnailLoading}>
             追加
-          </button>
-        </div>
+          </Button>
+        </Form>
       </MainArea>)
 }
diff --git a/frontend/src/pages/PostPage.tsx b/frontend/src/pages/posts/PostPage.tsx
similarity index 100%
rename from frontend/src/pages/PostPage.tsx
rename to frontend/src/pages/posts/PostPage.tsx