diff --git a/hybrid/html/web/viewer.html b/hybrid/html/web/viewer.html
index 5a0d4ec..4ceadad 100644
--- a/hybrid/html/web/viewer.html
+++ b/hybrid/html/web/viewer.html
@@ -28,15 +28,6 @@ See https://github.com/adobe-type-tools/cmap-resources
 		<meta name="google" content="notranslate">
 		<meta http-equiv="X-UA-Compatible" content="IE=edge">
 		<title>PDF播放器</title>
-		<style>
-			.tip {
-				position: fixed;
-				top: 45px;
-				right: 25px;
-				z-index: 99999999;
-				color: #2979ff;
-			}
-		</style>
 		<link rel="stylesheet" href="viewer.css">
 		<!-- This snippet is used in production (included from viewer.html) -->
 		<link rel="resource" type="application/l10n" href="locale/locale.properties">
@@ -477,7 +468,6 @@ See https://github.com/adobe-type-tools/cmap-resources
 
 		</div> <!-- outerContainer -->
 		<div id="printContainer"></div>
-		<div class="tip" id="tip"></div>
 	</body>
 </html>
 
@@ -488,61 +478,5 @@ See https://github.com/adobe-type-tools/cmap-resources
 	
 </script>
 <script type="text/javascript">
-	let params = window.location.search;
-	console.log('🚀 ~ params:', params)
-	params = decodeURIComponent(params).split('.pdf?')[1].split('&')[0].split('=')[1]
-	console.log('params:',params)
-	if (params > 0) {
-		let minute = Math.floor(params / 60);
-		minute = String(minute).padStart(2, '0')
-		let second = params % 60;
-		let time = minute + ':' + second;
-		let interval = setInterval(() => {
-			params -= 1;
-			console.log('params:',params)
-
-			if (params <= 0) {
-				clearInterval(interval);
-				document.getElementById('tip').innerText = '已完成学习';
-			} else {
-				let arr = time.split(':');
-				let minute = parseInt(arr[0]);
-				let second = parseInt(arr[1]);
-				if (second == 0) {
-					minute -= 1;
-					second = 59;
-					if (minute < 10) {
-						minute = String(minute).padStart(2, '0');
-					}
-				} else {
-					second -= 1;
-					if (minute < 10) {
-						minute = String(minute).padStart(2, '0');
-					}
-					if (second < 10) {
-						second = String(second).padStart(2, '0');
-					}
-				}
-				time = minute + ':' + second;
-				document.getElementById('tip').innerText = '剩余学习时间：' + time;
-			}
-		}, 1000);
-	} else if (params == 0) {
-		document.getElementById('tip').innerText = '已完成学习';
-	} else {
-		document.getElementById('tip').innerText = '';
-	}
-
-	var interval = setInterval('loadPdf()', 300);
-	function loadPdf() {
-		if (PDFViewerApplication.pdfDocument == null) {
-			// console.info('Loading...');
-		} else {
-			clearInterval(interval);
-			
-			// let _iframe = document.getElementById("iframe")
-			console.info('Load Success...:',PDFViewerApplication.pdfDocument);
-		}
-	};
 
 </script>