diff --git a/src/assets/styles/toc.css b/src/assets/styles/toc.css
deleted file mode 100644
index a8a0caa..0000000
--- a/src/assets/styles/toc.css
+++ /dev/null
@@ -1,271 +0,0 @@
-/* Table of Contents ----------------------------------- */
-
-.post-menu {
-  position: fixed;
-  display: table;
-  top: 0;
-  right: -18.125rem;
-  bottom: 0;
-  width: 17.5rem;
-  height: 100%;
-  background-color: #fafafa;
-  border-left: 0.0625rem solid #f0f0f0;
-  opacity: 1;
-  z-index: 880;
-  font-weight: 400;
-  -webkit-transition: 0.5s ease all;
-  -moz-transition: 0.5s ease all;
-  -ms-transition: 0.5s ease all;
-  -o-transition: 0.5s ease all;
-  transition: 0.5s ease all;
-}
-
-.display-menu-tree .post-menu {
-  -webkit-transform: translateX(-18.125rem);
-  -moz-transform: translateX(-18.125rem);
-  -ms-transform: translateX(-18.125rem);
-  -o-transform: translateX(-18.125rem);
-  transform: translateX(-18.125rem);
-}
-
-.post-menu::-webkit-scrollbar {
-  height: 8px;
-  width: 4px;
-}
-
-.post-menu::-webkit-scrollbar-button {
-  height: 0;
-  width: 0;
-}
-
-.post-menu::-webkit-scrollbar-button:start:decrement,
-.post-menu::-webkit-scrollbar-button:end:increment {
-  display: block;
-}
-
-.post-menu::-webkit-scrollbar-button:vertical:start:increment,
-.post-menu::-webkit-scrollbar-button:vertical:end:decrement {
-  display: none;
-}
-
-.post-menu::-webkit-scrollbar-track:vertical,
-.post-menu::-webkit-scrollbar-track:horizontal {
-  background-clip: padding-box;
-  background-color: #191919;
-  border: 0 solid transparent;
-}
-
-.post-menu::-webkit-scrollbar-track:hover {
-  background-color: #191919;
-  -webkit-box-shadow: inset 1px 0 0 rgba(0, 0, 0, 0.1);
-  -moz-box-shadow: inset 1px 0 0 rgba(0, 0, 0, 0.1);
-  box-shadow: inset 1px 0 0 rgba(0, 0, 0, 0.1);
-}
-
-.post-menu::-webkit-scrollbar-track:active {
-  background-color: #191919;
-  -webkit-box-shadow:
-    inset 1px 0 0 rgba(0, 0, 0, 0.14),
-    inset -1px -1px 0 rgba(0, 0, 0, 0.07);
-  -moz-box-shadow:
-    inset 1px 0 0 rgba(0, 0, 0, 0.14),
-    inset -1px -1px 0 rgba(0, 0, 0, 0.07);
-  box-shadow:
-    inset 1px 0 0 rgba(0, 0, 0, 0.14),
-    inset -1px -1px 0 rgba(0, 0, 0, 0.07);
-}
-
-.post-menu::-webkit-scrollbar-thumb {
-  background-clip: padding-box;
-  background-color: rgba(255, 255, 255, 0.3);
-  min-height: 40px;
-  padding-top: 100px;
-  border-radius: 2px;
-  -webkit-box-shadow:
-    inset 1px 1px 0 rgba(0, 0, 0, 0.1),
-    inset 0 -1px 0 rgba(0, 0, 0, 0.07);
-  -moz-box-shadow:
-    inset 1px 1px 0 rgba(0, 0, 0, 0.1),
-    inset 0 -1px 0 rgba(0, 0, 0, 0.07);
-  box-shadow:
-    inset 1px 1px 0 rgba(0, 0, 0, 0.1),
-    inset 0 -1px 0 rgba(0, 0, 0, 0.07);
-}
-
-.post-menu::-webkit-scrollbar-thumb:hover {
-  background-color: rgba(255, 255, 255, 0.4);
-  -webkit-box-shadow: inset 1px 1px 1px rgba(0, 0, 0, 0.25);
-  -moz-box-shadow: inset 1px 1px 1px rgba(0, 0, 0, 0.25);
-  box-shadow: inset 1px 1px 1px rgba(0, 0, 0, 0.25);
-}
-
-.post-menu::-webkit-scrollbar-thumb:active {
-  background-color: rgba(255, 255, 255, 0.5);
-  -webkit-box-shadow: inset 1px 1px 3px rgba(0, 0, 0, 0.35);
-  -moz-box-shadow: inset 1px 1px 3px rgba(0, 0, 0, 0.35);
-  box-shadow: inset 1px 1px 3px rgba(0, 0, 0, 0.35);
-}
-
-.post-menu::-webkit-scrollbar-thumb:vertical,
-.post-menu::-webkit-scrollbar-thumb:horizontal {
-  border: 0 solid transparent;
-}
-
-.toggle-menu-tree {
-  top: 0;
-  bottom: 0;
-  font-size: 1.375rem;
-  position: fixed;
-  right: 0;
-  margin-right: -5rem;
-  margin-bottom: auto;
-  margin-top: auto;
-  padding-left: 0.35rem;
-  color: #555;
-  width: 6.25rem;
-  height: 6.25rem;
-  background-color: rgba(255, 255, 255, 0.9);
-  cursor: pointer;
-  line-height: 6.25rem;
-  border-radius: 6.25rem;
-  border: 0.0625rem solid #f0f0f0;
-  opacity: 1;
-  font-family: -apple-system;
-  z-index: 890;
-  -webkit-transition: 0.5s ease all;
-  -moz-transition: 0.5s ease all;
-  -ms-transition: 0.5s ease all;
-  -o-transition: 0.5s ease all;
-  transition: 0.5s ease all;
-  -webkit-box-shadow: 0 0.125rem 0.3125rem rgba(0, 0, 0, 0.117);
-  -moz-box-shadow: 0 0.125rem 0.3125rem rgba(0, 0, 0, 0.117);
-  box-shadow: 0 0.125rem 0.3125rem rgba(0, 0, 0, 0.117);
-}
-
-.display-menu-tree .toggle-menu-tree {
-  background: #fafafa;
-  padding-left: 0;
-  width: 3.125rem;
-  height: 3.125rem;
-  line-height: 3.125rem;
-  text-align: center;
-  margin-right: -1.5625rem;
-  -webkit-transform: translateX(-17.5rem);
-  -moz-transform: translateX(-17.5rem);
-  -ms-transform: translateX(-17.5rem);
-  -o-transform: translateX(-17.5rem);
-  transform: translateX(-17.5rem);
-}
-
-.toggle-menu-tree i {
-  -webkit-transition: 0.5s ease all;
-  -moz-transition: 0.5s ease all;
-  -ms-transition: 0.5s ease all;
-  -o-transition: 0.5s ease all;
-  transition: 0.5s ease all;
-}
-
-.display-menu-tree .toggle-menu-tree i {
-  -webkit-transform: rotate(180deg);
-  -moz-transform: rotate(180deg);
-  -ms-transform: rotate(180deg);
-  -o-transform: rotate(180deg);
-  transform: rotate(180deg);
-}
-
-.toggle-menu-tree:hover {
-  background: #fafafa;
-  -webkit-transform: translateX(-1.25rem);
-  -moz-transform: translateX(-1.25rem);
-  -ms-transform: translateX(-1.25rem);
-  -o-transform: translateX(-1.25rem);
-  transform: translateX(-1.25rem);
-}
-
-.toggle-menu-tree.show {
-  right: 0;
-}
-
-.toggle-menu-tree.hide {
-  right: -5.3125rem;
-}
-
-.display-menu-tree .toggle-menu-tree.hide {
-  right: 0;
-}
-
-.toc-wrap {
-  position: absolute;
-  top: 0;
-  bottom: 0;
-  left: 0;
-  right: -3rem;
-  overflow-x: hidden;
-  overflow-y: auto;
-  --webkit-overflow-scrolling: touch;
-}
-
-.toc-content {
-  margin-right: 3rem;
-  padding-top: 2.875rem;
-  -webkit-transition: 0.5s ease all;
-  -moz-transition: 0.5s ease all;
-  -ms-transition: 0.5s ease all;
-  -o-transition: 0.5s ease all;
-  transition: 0.5s ease all;
-}
-
-.post-menu-title {
-  font-size: 1.5rem;
-  text-align: left;
-  line-height: 3.6rem;
-  width: 100%;
-  font-weight: 700;
-  padding: 0 2.5rem;
-  color: #202020;
-}
-
-.index-menu {
-  padding-top: 2rem;
-}
-
-.index-menu-list {
-  line-height: 1.8em;
-  list-style: none;
-  padding: 0;
-}
-
-.index-menu-item {
-  overflow: hidden;
-  text-overflow: ellipsis;
-}
-
-.index-menu-item > .index-menu-list span.menu-content {
-  padding-left: 2rem;
-}
-
-.index-menu-item > .index-menu-list > .index-menu-item > .index-menu-list span.menu-content {
-  padding-left: 4rem;
-}
-
-.index-menu-item.current > a.index-menu-link {
-  background: #f5f5f5;
-  color: #1abc9c;
-  font-weight: 700;
-}
-
-a.index-menu-link {
-  color: #555;
-  white-space: nowrap;
-  overflow: hidden;
-  text-overflow: ellipsis;
-  font-size: 0.85rem;
-  padding: 0.375rem 2.5rem;
-  position: relative;
-  display: block;
-}
-
-a.index-menu-link:hover {
-  background: #efefef;
-  color: #333;
-}