diff --git a/lvtu/index.html b/lvtu/index.html
index f7185c2..8539ced 100644
--- a/lvtu/index.html
+++ b/lvtu/index.html
@@ -74,7 +74,7 @@
 			投
 		</div>
 	</div>
-	<div id="tanmu_div" style="visibility:hidden;border:0;position:absolute;left:0;right:0;height:0;bottom:0;z-index:0;box-sizing: border-box;background-color:#F6F6F6;">
+	<div id="tanmu_div" style="visibility:hidden;border:0;position:absolute;left:-999px;top:-999px;right:0;height:0;bottom:0;z-index:0;box-sizing: border-box;background-color:#F6F6F6;">
 		<iframe  scrolling="no" style="width:100%;height:40px;border:0;opacity:0.5;" src="http://123.57.39.116:9797/"></iframe>
 		<iframe  scrolling="no" style="width:100%;height:152px;border:0;margin-top:-2px;" src="http://123.57.39.116:9797/emit"></iframe>
 	</div>
diff --git a/lvtu/js/main.js b/lvtu/js/main.js
index 3ace722..76a1096 100644
--- a/lvtu/js/main.js
+++ b/lvtu/js/main.js
@@ -247,9 +247,13 @@
 	$('.danmu').on('click', function(){
 		if(tag % 2 === 0){
 			$('#tanmu_div').css('height', '194px');
+			$('#tanmu_div').css('left', '0');
+			$('#tanmu_div').css('top', '');
 			$('#tanmu_div').css('visibility', 'visible');
 		}else{
 			$('#tanmu_div').css('height', '0');
+			$('#tanmu_div').css('left', '-999px');
+			$('#tanmu_div').css('top', '-999px');
 			$('#tanmu_div').css('visibility', 'hidden');
 		}
 		tag ++;