diff --git a/scripts/tags/index.js b/scripts/tags/index.js
new file mode 100644
index 0000000..55bee61
--- /dev/null
+++ b/scripts/tags/index.js
@@ -0,0 +1,8 @@
+/* global hexo */
+
+'use strict';
+
+const postTabs = require('./lib/tabs')(hexo);
+hexo.extend.tag.register('tabs', postTabs, true);
+hexo.extend.tag.register('subtabs', postTabs, true);
+hexo.extend.tag.register('subsubtabs', postTabs, true);
diff --git a/scripts/tags/lib/tabs.js b/scripts/tags/lib/tabs.js
new file mode 100644
index 0000000..f7b4113
--- /dev/null
+++ b/scripts/tags/lib/tabs.js
@@ -0,0 +1,36 @@
+/**
+ * tabs.js | https://theme-next.js.org/docs/tag-plugins/tabs
+ */
+
+'use strict';
+
+module.exports = ctx => function(args, content) {
+  const tabBlock = /<!--\s*tab (.*?)\s*-->\n([\w\W\s\S]*?)<!--\s*endtab\s*-->/g;
+  args = ctx.args.map(args, ['active', 'codeblock', 'color'], ['tabName']);
+  const tabName = args.tabName;
+  const tabActive = Number(args.active) || 0;
+
+  let match;
+  let tabId = 0;
+  let tabNav = '';
+  let tabContent = '';
+
+  if (!tabName) ctx.log.warn('Tabs block must have unique name!');
+
+  while ((match = tabBlock.exec(content)) !== null) {
+    let {caption, codeblock} = ctx.args.map(match[1].split(' '), ['codeblock'], ['caption']);
+    let postContent = ctx.render.renderSync({ text: match[2], engine: 'markdown' }).trim();
+
+    const abbr = tabName + ' ' + ++tabId;
+    const href = abbr.toLowerCase().split(' ').join('-');
+
+    const isActive = (tabActive > 0 && tabActive === tabId) || (tabActive === 0 && tabId === 1) ? ' active' : '';
+    tabNav += `<li class="tab${isActive}"><a href="#${href}">${caption || abbr}</a></li>`;
+    tabContent += `<div class="tab-pane${isActive}" ${codeblock ? 'codeblock="true"' : ''} id="${href}">${postContent}</div>`;
+  }
+
+  tabNav = `<ul class="nav-tabs">${tabNav}</ul>`;
+  tabContent = `<div class="tab-content fs14">${tabContent}</div>`;
+
+  return `<div class="tag-plugin tabs" id="${tabName.toLowerCase().split(' ').join('-')}">${tabNav + tabContent}</div>`;
+};
diff --git a/source/css/_common/base.styl b/source/css/_common/base.styl
index 77747e6..682b5d7 100644
--- a/source/css/_common/base.styl
+++ b/source/css/_common/base.styl
@@ -48,7 +48,7 @@ table:not([class])
     background: var(--block)
   td,th
     padding: 0.5em 1em
-    border: 1px solid var(--hover-block)
+    border: 1px solid var(--block-hover)
     line-height: 1.5
   tr
     word-break: keep-all
diff --git a/source/css/_common/highlight.styl b/source/css/_common/highlight.styl
index 1eecd29..9af7a17 100644
--- a/source/css/_common/highlight.styl
+++ b/source/css/_common/highlight.styl
@@ -19,7 +19,7 @@ article.md .highlight
     padding: 4px 0.5rem
     position: sticky
     left: 0
-    background: var(--hover-block)
+    background: var(--block-hover)
     border-top-left-radius: "calc(%s - 1px)" % $border-block
     border-top-right-radius: "calc(%s - 1px)" % $border-block
     border-bottom: 1px solid var(--block-border)
diff --git a/source/css/_common/mobile-only.styl b/source/css/_common/mobile-only.styl
index e7a1d5b..523e7c8 100644
--- a/source/css/_common/mobile-only.styl
+++ b/source/css/_common/mobile-only.styl
@@ -14,7 +14,7 @@
   padding-right: 2rem
   padding: 4px
   overflow: hidden
-  background: var(--hover-block)
+  background: var(--block-hover)
 
 .sidebar-toggle.mobile
   cursor: pointer
diff --git a/source/css/_defines/func.styl b/source/css/_defines/func.styl
index 1363101..164baaa 100644
--- a/source/css/_defines/func.styl
+++ b/source/css/_defines/func.styl
@@ -90,7 +90,7 @@ hover-block($v, $h, $br = 4px)
   padding: $v $h
   trans2 color background
   &:hover
-    background: var(--hover-block)
+    background: var(--block-hover)
 
 
 inside-box($fs = $fs-15)
diff --git a/source/css/_defines/theme.styl b/source/css/_defines/theme.styl
index 7fceb41..1064553 100644
--- a/source/css/_defines/theme.styl
+++ b/source/css/_defines/theme.styl
@@ -2,7 +2,7 @@
   --site-bg: $c-site-bg-light
   --block: $c-block-light
   --block-border: mix($c-block-light, $c-text-light, 95)
-  --hover-block: mix($c-block-light, $c-text-light, 98)
+  --block-hover: mix($c-block-light, $c-text-light, 98)
   --text-p0: $c-title-light
   --text-p1: $c-text-light
   --text-p2: mix($c-text-light, $c-site-bg-light, 80)
@@ -16,7 +16,7 @@ body[theme='dark']
   --site-bg: $c-site-bg-dark
   --block: $c-block-dark
   --block-border: mix($c-block-dark, $c-text-dark, 90)
-  --hover-block: mix($c-block-dark, $c-text-dark, 95)
+  --block-hover: mix($c-block-dark, $c-text-dark, 95)
   --text-p0: $c-title-dark
   --text-p1: $c-text-dark
   --text-p2: mix($c-text-dark, $c-site-bg-dark, 70)
diff --git a/source/css/_layout/md.styl b/source/css/_layout/md.styl
index d0691cb..e9b1be6 100644
--- a/source/css/_layout/md.styl
+++ b/source/css/_layout/md.styl
@@ -38,7 +38,7 @@ article.md
     &:first-child
       margin-top: 0
   h3
-    margin-top: 3rem
+    margin-top: 1.5rem
     font-weight: 400
   h4,h5,h6
     font-weight: 500
@@ -70,6 +70,10 @@ article.md code
   font-family: $ff-code
   word-break: break-all
   font-size: $fs-p
+  background: var(--block)
+  padding: 2px
+  border-radius: 2px
+  border: 1px solid var(--block-border)
 
 // div
 article.md>div
diff --git a/source/css/_layout/partial/navbar.styl b/source/css/_layout/partial/navbar.styl
index 45af35d..7e061e2 100644
--- a/source/css/_layout/partial/navbar.styl
+++ b/source/css/_layout/partial/navbar.styl
@@ -22,7 +22,7 @@ nav.cap
     white-space: nowrap
     trans1 background
     &.active, &:hover
-      background: var(--hover-block)
+      background: var(--block-hover)
       color: var(--text-p1)
 
 
diff --git a/source/css/_layout/partial/related.styl b/source/css/_layout/partial/related.styl
index 8eb1604..754729b 100644
--- a/source/css/_layout/partial/related.styl
+++ b/source/css/_layout/partial/related.styl
@@ -26,7 +26,7 @@
       min-width: 280px
       width: 40vw
       max-width: 460px
-      border: 1px solid var(--hover-block)
+      border: 1px solid var(--block-hover)
       .img
         min-width: 100%
         min-height: 140px
diff --git a/source/css/_layout/sidebar/toc.styl b/source/css/_layout/sidebar/toc.styl
index 3498405..84cafda 100644
--- a/source/css/_layout/sidebar/toc.styl
+++ b/source/css/_layout/sidebar/toc.styl
@@ -47,12 +47,12 @@
   line-height: 1.2
   border-radius: 4px
   &:hover
-    background: var(--hover-block)
+    background: var(--block-hover)
   &.active
     color: var(--theme-highlight) !important
 
 #toc .doc-tree
-  border-left: 2px solid var(--hover-block)
+  border-left: 2px solid var(--block-hover)
   a.doc-tree-link
     color: var(--text-p3)
     padding: 0.5rem
@@ -65,10 +65,10 @@
       color: var(--text-p2)
       font-size: $fs-14
     &:hover
-      background: var(--hover-block)
+      background: var(--block-hover)
 
 #toc .widget-body.wiki
   .doc-tree.active
     border-color: var(--text-meta)
   .doc-tree.active:only-child
-    border-color: var(--hover-block)
+    border-color: var(--block-hover)
diff --git a/source/css/_layout/tag-plugins/checkbox.styl b/source/css/_layout/tag-plugins/checkbox.styl
index fb87382..c48b2f5 100644
--- a/source/css/_layout/tag-plugins/checkbox.styl
+++ b/source/css/_layout/tag-plugins/checkbox.styl
@@ -1,6 +1,5 @@
 .md .checkbox
   display: flex
-  align-items: center
   margin: 0.25em 0
   font-size: $fs-15
   line-height: 1.2
@@ -21,6 +20,8 @@
     margin-right: 8px
     if hexo-config('tag_plugins.checkbox.interactive') != true
       pointer-events: none
+  span
+    margin-top: 1px
   /* Checkbox */
   input[type=checkbox]
     &:before, &:after
@@ -155,7 +156,7 @@
 
 
 .tag-plugin.checkbox
-  --theme: $color-theme
+  --theme: $c-blue
 
 .tag-plugin.checkbox[color='red']
   --theme: mix($c-red, $c-card-light, 90)
diff --git a/source/css/_layout/tag-plugins/copy.styl b/source/css/_layout/tag-plugins/copy.styl
index 1d7e351..06d8bcb 100644
--- a/source/css/_layout/tag-plugins/copy.styl
+++ b/source/css/_layout/tag-plugins/copy.styl
@@ -21,7 +21,7 @@
     margin: 0
     border-left: 1px solid var(--block-border)
     display: inline-block
-    background: var(--hover-block)
+    background: var(--block-hover)
     line-height: 0
     height: 100%
     font-size: 1rem
diff --git a/source/css/_layout/tag-plugins/friends.styl b/source/css/_layout/tag-plugins/friends.styl
index 3547b86..8a66bdd 100644
--- a/source/css/_layout/tag-plugins/friends.styl
+++ b/source/css/_layout/tag-plugins/friends.styl
@@ -66,7 +66,7 @@
   >img
     trans2 transform box-shadow
   &:hover
-    background: var(--hover-block)
+    background: var(--block-hover)
     img
       transform: scale(1.2) rotate(8deg)
       box-shadow: $boxshadow-card-float
diff --git a/source/css/_layout/tag-plugins/tabs.styl b/source/css/_layout/tag-plugins/tabs.styl
new file mode 100644
index 0000000..10626b7
--- /dev/null
+++ b/source/css/_layout/tag-plugins/tabs.styl
@@ -0,0 +1,76 @@
+$tbr = $border-block
+
+.tag-plugin.tabs
+  display: block
+  position: relative
+  margin-top: 1rem
+  margin-bottom: 1rem
+  border-radius: $tbr
+  border: 1px solid var(--block-border)
+  font-size: $fs-14
+
+.tag-plugin.tabs
+  ul.nav-tabs
+    display: flex
+    overflow-x: auto
+    white-space: nowrap
+    justify-content: flex-start
+    margin: 0 !important
+    padding: 8px 8px 0 8px
+    background: var(--block)
+    border-radius: $tbr $tbr 0 0
+    line-height: 1.5
+    li.tab
+      list-style-type: none
+      margin-top: 0
+      margin-bottom: 0
+      &:last-child
+        padding-right: 1rem
+      a
+        display: block
+        cursor: pointer
+        border-radius: $tbr $tbr 0 0
+        padding: 0.5rem
+        text-align: center
+        font-size: $fs-14
+        line-height: inherit
+        font-weight: 700
+        color: var(--text-p3)
+        border: 1px solid transparent
+        &:hover
+          color: var(--text-p1)
+        i
+          pointer-events: none
+      &.active a
+        cursor: default
+        color: var(--text-p1)
+        background: var(--card)
+        border: 1px solid var(--block-border)
+        border-bottom: 1px solid var(--card)
+
+  .tab-content
+    border-top: 1px solid var(--block-border)
+    margin-top: -1px
+    background: var(--card)
+    border-radius:  0 0 $tbr $tbr
+    .tab-pane
+      padding: 1rem
+      &:not(.active)
+        display: none
+      &.active
+        display: block
+      >
+        p,.tabs,ul,ol,.highlight,.note
+          &:first-child
+            margin-top: 0
+          &:last-child
+            margin-bottom: 0
+
+
+.tag-plugin.tabs .tab-pane[codeblock]
+  padding: 0
+  .highlight
+    border: none
+    border-radius: 0
+    background: transparent
+    margin: 0
diff --git a/source/js/main.js b/source/js/main.js
index 16cc0ff..1c604c8 100644
--- a/source/js/main.js
+++ b/source/js/main.js
@@ -230,7 +230,36 @@ const init = {
         $this.innerText = relativeValue
       }
     })
-  }
+  },
+  /**
+   * Tabs tag listener (without twitter bootstrap).
+   */
+  registerTabsTag: function() {
+    // Binding `nav-tabs` & `tab-content` by real time permalink changing.
+    document.querySelectorAll('.tabs ul.nav-tabs .tab').forEach(element => {
+      element.addEventListener('click', event => {
+        event.preventDefault();
+        // Prevent selected tab to select again.
+        if (element.classList.contains('active')) return;
+        // Add & Remove active class on `nav-tabs` & `tab-content`.
+        [...element.parentNode.children].forEach(target => {
+          target.classList.toggle('active', target === element);
+        });
+        // https://stackoverflow.com/questions/20306204/using-queryselector-with-ids-that-are-numbers
+        const tActive = document.getElementById(element.querySelector('a').getAttribute('href').replace('#', ''));
+        [...tActive.parentNode.children].forEach(target => {
+          target.classList.toggle('active', target === tActive);
+        });
+        // Trigger event
+        tActive.dispatchEvent(new Event('tabs:click', {
+          bubbles: true
+        }));
+      });
+    });
+
+    window.dispatchEvent(new Event('tabs:register'));
+  },
+
 }
 
 
@@ -238,7 +267,7 @@ const init = {
 init.toc()
 init.sidebar()
 init.relativeDate(document.querySelectorAll('#post-meta time'))
-
+init.registerTabsTag()
 
 // scrollreveal
 if (stellar.plugins.scrollreveal) {