diff --git a/_includes/comments-providers/gitalk.html b/_includes/comments-providers/gitalk.html
index cf30e4b7b2f..c481c37d481 100644
--- a/_includes/comments-providers/gitalk.html
+++ b/_includes/comments-providers/gitalk.html
@@ -5,9 +5,16 @@
 	site.comments.gitalk.owner and
 	site.comments.gitalk.admin -%}
 
+	<!-- fix text color in the input textarea of gitalk -->
+	<style type="text/css">
+		.gitalk-wrapper .gt-header-textarea {
+			color: #333 !important;
+		}
+	</style>
+
 	{%- include snippets/get-sources.html -%}
 	{%- assign _sources = __return -%}
-	<div id="js-gitalk-container"></div>
+	<div class="gitalk-wrapper" id="js-gitalk-container"></div>
 	{%- assign _admin = '' -%}
 	{%- for _admin_id in site.comments.gitalk.admin -%}
 		{%- assign _admin = _admin | append: ", '" | append: _admin_id | append: "'" -%}
diff --git a/_sass/common/components/_toc.scss b/_sass/common/components/_toc.scss
index ef0fb3bb023..eafb72520da 100644
--- a/_sass/common/components/_toc.scss
+++ b/_sass/common/components/_toc.scss
@@ -18,21 +18,21 @@ ul.toc {
     @include link-colors($text-color, $main-color-1);
   }
   .toc-h1 {
-    a {
+    &, a {
       @include link-colors($text-color-d);
     }
     &.active {
-      a {
+      &, a {
         color: $main-color-1;
       }
     }
   }
   .toc-h5, .toc-h6 {
-    a {
+    &, a {
       @include link-colors($text-color-l);
     }
     &.active {
-      a {
+      &, a {
         color: $main-color-1;
       }
     }