update code meta style

site/templates/code.html

@@ -3,7 +3,7 @@
     <div id="{{post.meta.id}}"></div>
     {{ post.html }}
   </div>
-  <div class="code-box-meta">
+  <div class="code-box-meta markdown">
     <div class="code-box-title">{{ post.title }}</div>
     {{ post.meta.description }}
     <span class="collapse anticon anticon-circle-o-right"></span>

static/style.css

@@ -1686,6 +1686,7 @@ footer ul li > a {
   padding: 12px 15px;
   border-radius: 0 0 6px 6px;
   transition: background-color 0.4s ease;
+  width: 100%;
 }
 
 .code-box-meta h4,
@@ -1736,6 +1737,7 @@ footer ul li > a {
   transform: rotate(90deg);
   transition: all 0.3s ease;
   color: #999;
+  background: #fff;
 }
 
 .code-box.expand .collapse {