fix: pc侧边栏显示

source/css/_extend.styl

@@ -59,7 +59,7 @@ $base-style
       padding 1rem 1.5rem
     tbody
       tr:nth-child(2n)
-        background-color rgba(froth, .25)
+        background-color transparent
 
   blockquote
     display block

source/js/ayer.js

@@ -204,6 +204,11 @@
     $sidebar.removeClass('on');
   });
 
+  if (window.matchMedia("(min-width: 768px)").matches) {
+    $content.addClass('on');
+    $sidebar.addClass('on');
+  }
+
 })(jQuery);