diff --git a/_config.yml b/_config.yml
index 1794498..453dace 100755
--- a/_config.yml
+++ b/_config.yml
@@ -62,15 +62,15 @@ style:
     footnote: .75rem
   fontfamily:
     logofont:
-      fontfamily: '"Varela Round"'
+      fontfamily: '"Varela Round", "PingFang SC", "Microsoft YaHei", Helvetica, Arial'
       name: 'Varela Round'
       url: https://cdn.jsdelivr.net/gh/xaoxuu/cdn-fonts/VarelaRound/VarelaRound-Regular.ttf
       weight: normal
       style: normal
     bodyfont:
-      fontfamily: '"UbuntuMono"'
+      fontfamily: 'UbuntuMono, "PingFang SC", "Microsoft YaHei", Helvetica, Arial'
       name: 'UbuntuMono'
-      url: https://cdn.jsdelivr.net/gh/xaoxuu/cdn-fonts@20.2.27/UbuntuMono/UbuntuMono-Regular.ttf
+      url: https://cdn.jsdelivr.net/gh/xaoxuu/cdn-fonts/UbuntuMono/UbuntuMono-Regular.ttf
       weight: normal
       style: normal
     codefont:
diff --git a/source/css/_layout/sidebar.styl b/source/css/_layout/sidebar.styl
index dff9a68..349a4fb 100644
--- a/source/css/_layout/sidebar.styl
+++ b/source/css/_layout/sidebar.styl
@@ -205,13 +205,15 @@
         font-size: $fontsize-meta
         font-weight: bold
         line-height: 2.4em
+        img,i
+          margin-right: 4px
         i
           margin-left: 1px
         img
-          display: inline
           vertical-align: middle
-          height: 2em
-          width: 2em
+          height: 20px
+          width: 20px
+          margin-bottom: 4px
           &#round
             border-radius: 100%
 
diff --git a/source/css/_layout/toc.styl b/source/css/_layout/toc.styl
index 97a371e..3931679 100644
--- a/source/css/_layout/toc.styl
+++ b/source/css/_layout/toc.styl
@@ -5,6 +5,7 @@
   position: sticky
   top: $navbar-height + $gap
   trans()
+  line-height: 1.4
   header
     position: sticky
     width: 100%
diff --git a/source/css/_tag-plugins/btns.styl b/source/css/_tag-plugins/btns.styl
index b904535..f66db7a 100644
--- a/source/css/_tag-plugins/btns.styl
+++ b/source/css/_tag-plugins/btns.styl
@@ -5,8 +5,9 @@ span.btn
     display: inline-block
     background: $color-theme
     color: $color-inner
-    padding: 2px 4px 0px 4px
+    padding: 4px 4px 2px 4px
     margin: 2px
+    line-height: 1.1
     border-radius: 2px
     i
       margin-right: 2px
@@ -21,12 +22,12 @@ span.btn
 
   &.regular
     >a
-      padding: 6px 12px 4px 12px
+      padding: 8px 12px 6px 12px
       i
         margin-right: 4px
   &.large
     >a
-      padding: 10px 36px 8px 36px
+      padding: 12px 36px 10px 36px
       i
         margin-right: 8px
   &.center
diff --git a/source/css/_tag-plugins/tabs.styl b/source/css/_tag-plugins/tabs.styl
index d82ead1..b0a8363 100644
--- a/source/css/_tag-plugins/tabs.styl
+++ b/source/css/_tag-plugins/tabs.styl
@@ -49,8 +49,14 @@ div.tabs
     border-top: 1px solid $border-color
     margin-top: -1px
     .tab-pane
-      padding: $gap-row $gap
+      padding: $gap
       &:not(.active)
         display: none
       &.active
         display: block
+      >
+        p,.tabs,ul,ol,.highlight,div.note
+          &:first-child
+            margin-top: 0
+          &:last-child
+            margin-bottom: 0