diff --git a/resources/web/homepage3/js/left.js b/resources/web/homepage3/js/left.js
index 60f083eb2..a40f7adf3 100644
--- a/resources/web/homepage3/js/left.js
+++ b/resources/web/homepage3/js/left.js
@@ -229,12 +229,42 @@ function ChangeLeftWidth()
 	
 	let NowWidth=window.innerWidth;
 	if(NowWidth<=WidthBoundary)
+	{
 		tSend['width']=224;
+		
+		ShowLeftMenuTip( false );
+	}
 	else
+	{
 		tSend['width']=64;
+		
+		ShowLeftMenuTip( true );
+	}
 
 	SendWXMessage( JSON.stringify(tSend) );		
 }
 
+function ShowLeftMenuTip( bShow )
+{
+	if(bShow==true)
+	{
+		$("div[menu='home'] div.BtnIcon").prop('title',GetCurrentTextByKey('t114'));
+		$("div[menu='recent'] div.BtnIcon").prop('title',GetCurrentTextByKey('t35'));
+		$("div[menu='online'] div.BtnIcon").prop('title',GetCurrentTextByKey('t107'));
+		$("div[menu='makerlab'] div.BtnIcon").prop('title','MakerLab');
+		$("div[menu='printhistory'] div.BtnIcon").prop('title',GetCurrentTextByKey('t117'));
+		$("div[menu='manual'] div.BtnIcon").prop('title',GetCurrentTextByKey('t87'));
+	}
+	else
+	{
+		$("div[menu='home'] div.BtnIcon").removeAttr('title');
+		$("div[menu='recent'] div.BtnIcon").removeAttr('title');
+		$("div[menu='online'] div.BtnIcon").removeAttr('title');
+		$("div[menu='makerlab'] div.BtnIcon").removeAttr('title');
+		$("div[menu='printhistory'] div.BtnIcon").removeAttr('title');
+		$("div[menu='manual'] div.BtnIcon").removeAttr('title');	
+	}
+}
+
 //---------------Global-----------------
 window.postMessage = HandleStudio;
diff --git a/resources/web/homepage3/left.html b/resources/web/homepage3/left.html
index 946f82498..4056abf92 100644
--- a/resources/web/homepage3/left.html
+++ b/resources/web/homepage3/left.html
@@ -43,7 +43,7 @@
 	<div id="BtnArea">
 	    <div menu="home" class="BtnItem BtnItemSelected" onClick="GotoMenu('home')">
 			<div class="BtnIcon "><img class="LeftIcon" src="img/left_home.svg" /></div>
-			<div class="BtnText trans" tid="t114">Home</div> 
+			<div class="BtnText trans" tid="t114">Home</div>
 		</div>	
 	    <div menu="recent" class="BtnItem" onClick="GotoMenu('recent')">
 			<div class="BtnIcon "><img class="LeftIcon" src="img/left_recent.svg" /></div>