adjust styles(pre.hljs cite)

resource/css/_wiki.scss

@@ -165,8 +165,7 @@ div.body {
     }
   }
 
-/* ensure to disable in crowi-plus
-  .wiki-code {
+  pre.hljs {
     position: relative;
 
     cite {
@@ -176,11 +175,11 @@ div.body {
       padding: 0 4px;
       background: #ccc;
       color: #333;
-      font-size: .8em;
-
+      font-style: normal;
+      font-weight: bold;
+      opacity: 0.6;
     }
   };
-*/
 
   p code {  // only inline code blocks
     font-family: $font-family-monospace-not-strictly;