diff --git a/.github/workflows/check_config.yaml b/.github/workflows/check_config.yaml
index f889409..9c97b39 100644
--- a/.github/workflows/check_config.yaml
+++ b/.github/workflows/check_config.yaml
@@ -10,7 +10,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v1
       with:
-        python-version: 3.7
+        python-version: 3.9
 
     - name: install dependencies
       run:  pip3 install pyyaml
diff --git a/.gitignore b/.gitignore
index 03fd388..1707d9d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,3 +15,5 @@ Thumbs.db
 _/images/Thumbs.db
 settings.ini
 .vscode/settings.json
+new_blog/
+.kiro/
\ No newline at end of file
diff --git a/_includes/custom-head.html b/_includes/custom-head.html
index 1842575..7909011 100644
--- a/_includes/custom-head.html
+++ b/_includes/custom-head.html
@@ -61,3 +61,68 @@
     elem.forEach(e => (e.innerHTML = '<i class="fas fa-link fa-xs"></i>'));
     });
 </script>
+
+<script src="https://code.jquery.com/jquery-3.7.1.min.js" integrity="sha256-/JqT3SQfawRcv/BIHPThkBvs0OEvtFFmqPF/lYI/Cxo=" crossorigin="anonymous"></script>
+
+<style>
+.post-container {
+  display: flex;
+  position: relative;
+}
+
+.toc-sidebar {
+  position: fixed;
+  right: 20px;
+  top: 20px;
+  width: 250px;
+  max-height: calc(100vh - 40px);
+  overflow-y: auto;
+  background: #f6f8fa;
+  border: 1px solid #d0d7de;
+  border-radius: 6px;
+  padding: 16px;
+  z-index: 100;
+  box-shadow: 0 1px 3px rgba(27, 31, 36, 0.1);
+  font-size: 14px;
+}
+
+.toc-sidebar h2 {
+  font-size: 16px;
+  margin-top: 0;
+  color: #24292f;
+}
+
+.toc-sidebar ul {
+  list-style: none;
+  padding-left: 0;
+}
+
+.toc-sidebar li {
+  margin: 4px 0;
+}
+
+.toc-sidebar a {
+  color: #0969da;
+  text-decoration: none;
+}
+
+.toc-sidebar a:hover {
+  text-decoration: underline;
+}
+
+.post-main {
+  margin-right: 280px;
+  flex: 1;
+  max-width: calc(100% - 280px);
+}
+
+@media (max-width: 768px) {
+  .toc-sidebar {
+    display: none;
+  }
+  .post-main {
+    margin-right: 0;
+    max-width: 100%;
+  }
+}
+</style>
diff --git a/_layouts/post.html b/_layouts/post.html
index 9d924a0..f3c6cc8 100644
--- a/_layouts/post.html
+++ b/_layouts/post.html
@@ -18,7 +18,7 @@ <h1 class="post-title p-name" itemprop="name headline">{{ page.title | escape }}
         {{ page.date | date: date_format }}
       </time>
       {%- if page.modified_date -%}
-        ~ 
+        ~
         {%- assign mdate = page.modified_date | date_to_xmlschema -%}
         <time class="dt-modified" datetime="{{ mdate }}" itemprop="dateModified">
           {{ mdate | date: date_format }}
@@ -35,7 +35,7 @@ <h1 class="post-title p-name" itemprop="name headline">{{ page.title | escape }}
     </p>
 
     {% if page.categories.size > 0 and site.show_tags %}
-      <p class="category-tags"><i class="fas fa-tags category-tags-icon"></i></i> 
+      <p class="category-tags"><i class="fas fa-tags category-tags-icon"></i></i>
       {% for category in  page.categories  %}
         <a class="category-tags-link" href="{{site.baseurl}}/categories/#{{category|slugize}}">{{category}}</a>
         {% unless forloop.last %}&nbsp;{% endunless %}
@@ -54,14 +54,21 @@ <h1 class="post-title p-name" itemprop="name headline">{{ page.title | escape }}
     {% endif -%}
   </header>
 
-  <div class="post-content e-content" itemprop="articleBody">
-    {{ content | toc  }}
+  <div class="post-container">
+    <aside class="toc-sidebar">
+      {% include toc.html %}
+    </aside>
+    <main class="post-main">
+      <div class="post-content e-content" itemprop="articleBody">
+        {{ content }}
+      </div>
+      {%- if page.comments -%}
+        {%- include utterances.html -%}
+      {%- endif -%}
+      {%- if site.disqus.shortname -%}
+        {%- include disqus_comments.html -%}
+      {%- endif -%}
+      <a class="u-url" href="{{ page.url | relative_url }}" hidden></a>
+    </main>
   </div>
-  {%- if page.comments -%}
-    {%- include utterances.html -%}
-  {%- endif -%}
-  {%- if site.disqus.shortname -%}
-    {%- include disqus_comments.html -%}
-  {%- endif -%}
-  <a class="u-url" href="{{ page.url | relative_url }}" hidden></a>
 </article>
\ No newline at end of file