Fix code blocks presentation

themes/daux/scss/_typography.scss

@@ -214,6 +214,11 @@ h1, h2, h3, h4, h5, h6 {
             box-shadow: none;
         }
 
+        code:before,
+        code:after {
+            display: none;
+        }
+
         code, tt {
             background-color: transparent;
             border: none;