fix style

@@ -58,6 +58,7 @@ body {
                 margin-left: 34px;
                 border: 0;
                 border: 1px solid $borderColor;
+                color: #444;
             }
 
             &.on {
@@ -71,7 +72,7 @@ body {
             resize: none;
             border: 1px solid #ddd;
             display: block;
-            color: #555;
+            color: #444;
         }
 
         .iconfont {