修改预览页面的样式

src/main/webapp/resources/css/preview2.css

@@ -3,10 +3,13 @@ body {
 	font-family: courier;
 }
 
-button {
-	border: 0;
+button, #toolbarContainer {
 	background-color: #404040;
 	color: #fff;
+}
+
+button {
+	border: 0;
 	cursor: pointer;
 }
 
@@ -15,8 +18,6 @@ button {
 	width: 100%;
 	height: 40px;
 	line-height: 40px;
-	background-color: #404040;
-	color: #fff;
 }
 
 #toolbarViewerLeft {