diff --git a/assets/scss/index.scss b/assets/scss/index.scss
index d3c6d46..b701dad 100644
--- a/assets/scss/index.scss
+++ b/assets/scss/index.scss
@@ -241,75 +241,6 @@ a {
 
 /* Sections */
 
-.table-of-contents {
-  position: fixed;
-  left: 0px;
-  top: 0px;
-  height: 100%;
-  display: flex;
-  flex-direction: row;
-
-  .extend {
-    margin: auto;
-    padding-block: 1rem;
-    padding-inline: 0.4rem;
-    border-radius: 0rem 0.5rem 0.5rem 0rem;
-    background-color: black;
-    cursor: pointer;
-  }
-}
-
-#TableOfContents {
-  display: none;
-  margin: auto;
-  padding-inline: 20px;
-  border-radius: 0rem 0.5rem 0.5rem 0rem;
-  background-color: black;
-  font-size: larger;
-
-  ul {
-    counter-reset:toc1; 
-    list-style-type:none;
-    padding-inline-start: 0rem;
-    padding-block: 0.5rem;
-  }
-
-  li {
-    list-style-type:none;
-
-    ul {
-      counter-reset:toc2;
-
-      li {
-        list-style-type:none;
-
-        ul {
-          counter-reset:toc3;
-
-          li:before {
-            counter-increment:toc3;
-            content:counter(toc1) "." counter(toc2) "." counter(toc3) " ";
-          }
-        }
-      }
-
-      li:before {
-        counter-increment:toc2;
-        content:counter(toc1) "." counter(toc2) " ";
-      }
-    }
-  }
-
-  li:before {
-    counter-increment:toc1;
-    content:counter(toc1) ". ";
-  }
-}
-
-#TableOfContents.show {
-  display: block;
-}
-
 #content {
   flex-grow: 1;
   display: flex;
@@ -317,8 +248,7 @@ a {
 }
 
 .title h1 {
-  font-size: xxx-large;
-  padding-block-end: 3rem;
+  font-size: xx-large;
 }
 
 .content {
diff --git a/layouts/_default/single.html b/layouts/_default/single.html
index 6a1c401..087d2e4 100644
--- a/layouts/_default/single.html
+++ b/layouts/_default/single.html
@@ -14,12 +14,6 @@
             </div>
         {{ end }}
         <!-- <h6>{{ .Date.Format "Mon, Jan 2, 2006" }}</h6> -->
-        {{ if gt (.TableOfContents | findRE `<li>` | len) 4}}
-            <div class="table-of-contents">
-                {{ .TableOfContents }}
-                <div class="extend" onclick="toggleTableOfContent(event)"><i class="icon-angle-right"></i></div>
-            </div>
-        {{ end }}
         {{ .Content }}
     </div>
 {{ end }}
\ No newline at end of file
diff --git a/layouts/_default/summary.html b/layouts/_default/summary.html
deleted file mode 100644
index e69de29..0000000
diff --git a/layouts/partials/head.html b/layouts/partials/head.html
index 99db806..9151467 100644
--- a/layouts/partials/head.html
+++ b/layouts/partials/head.html
@@ -5,8 +5,28 @@
   <meta name="viewport" content="width=device-width, initial-scale=1.0, shrink-to-fit=no" />
   <meta http-equiv="x-ua-compatible" content="ie=edge">
   <meta name="color-scheme" content="dark light">
-  {{ template "_internal/opengraph.html" . }}
   <title>{{ if .Title }}{{ .Title }}{{ else }}{{ .Site.Title }}{{ end }}</title>
+  {{ block "opengraph" . }}
+    <meta property="og:type" content="website" />
+    {{ with .Site.LanguageCode }}
+      <meta property="og:locale" content='{{ replace . "-" "_" }}' />
+    {{ end }}
+    <meta property="og:title" content="{{ if .Title }}{{ .Title }}{{ else }}{{ .Site.Title }}{{ end }}" />
+    <meta property="og:url" content="{{ .Permalink }}" />
+    <meta property="og:site_name" content="{{ .Site.Title }}" />
+    {{ if .Params.image }}
+      <meta property="og:image" content="{{ .Params.image | absURL }}" />
+    {{ else }}
+      <meta property="og:image" content="{{ .Site.Params.logo | absURL }}" />
+    {{ end }}
+    {{ if .Params.summary }}
+      <meta property="og:description" content="{{ .Params.summary }}" />
+    {{ else if .Content }}
+      <meta property="og:description" content="{{ .Content | safeHTML | truncate 100 }}" />
+    {{ else }}
+      <meta property="og:description" content="{{ .Site.Params.Description }}" />
+    {{ end }}
+  {{ end }}
   {{ with .Site.Params.favIcon }}
     {{ if .ico }}
       <link rel="icon" type="image/x-icon" href="{{ .ico }}">
@@ -27,7 +47,6 @@
     <link rel="stylesheet" type="text/css" href="{{ $index.RelPermalink }}">
   {{ end }}
   <link rel="stylesheet" type="text/css" href="/icons/fontawesome.css">
-  <script src="/js/index.js"></script>
   <script src="/js/theme.js"></script>
   <script src="/js/scroll.js"></script>
 </head>
\ No newline at end of file
diff --git a/static/js/index.js b/static/js/index.js
deleted file mode 100644
index 3927ec2..0000000
--- a/static/js/index.js
+++ /dev/null
@@ -1,7 +0,0 @@
-function toggleTableOfContent(e) {
-  const toc = document.getElementById('TableOfContents');
-  toc.classList.toggle("show");
-  const extend = toc.parentElement.getElementsByClassName("extend")[0];
-  extend.children[0].classList.toggle("icon-angle-right");
-  extend.children[0].classList.toggle("icon-angle-left");
-}
\ No newline at end of file