diff --git a/test/index.html b/test/index.html
index 4db70c6..8dcc357 100644
--- a/test/index.html
+++ b/test/index.html
@@ -1,20 +1,29 @@
 <!DOCTYPE html>
 <html>
-<head>
-  <title>HTML Test Page</title>
-  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
-  <link rel="icon" href="../favicon.ico" sizes="32x32">
-  <link rel="stylesheet" type="text/css" media="screen, projection" href="style.css">
-</head>
+	<head>
+		<title>HTML Test Cases</title>
+		<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+		<link rel="icon" href="../favicon.ico" sizes="32x32">
+		<link rel="stylesheet" type="text/css" media="screen, projection" href="style.css">
+	</head>
 <body>
-  Test Custom protocol: <a href="sftp://mab.sdf.org">mab.sdf.org</a><br>
-  Test Flash download link: <a href="https://get.adobe.com/flashplayer/">Download</a><br>
-  Test Mailto link: <a href="mailto:test@test.com">Mailto link</a><br>
-  Test FTP download: <a href="ftp://ftp.sunet.se/robots.txt">Download over FTP</a><br>
-  Test "insecure" EXE download: <a href="http://ftp.matrixgames.com/pub/amazon/Afghanistan11-SetupBeta-v070.exe">Download over plain HTTP</a><br>
-  Test Iframe:<br>
-  <iframe width="100%" height="200px" src="https://int21.de/frametest/"></iframe><br>
-  Test Iframe PDF:<br>
-  <iframe width="100%" height="400px" src="https://research.google.com/pubs/archive/44678.pdf"></iframe><br>
+	Test Custom protocol: <a href="sftp://mab.sdf.org">mab.sdf.org</a>
+	<div>
+	Test Flash download link: <a href="https://get.adobe.com/flashplayer/">Download</a>
+	<div>
+	Test Mailto link: <a href="mailto:test@example.com">Mailto link</a>
+	<div>
+	Test TEL link: <a href="tel:1-234-567-8910">TEL link</a>
+	<div>
+	Test FTP download: <a href="ftp://ftp.sunet.se/robots.txt">Download over FTP</a>
+	<div>
+	Test "insecure" EXE download: <a href="http://ftp.matrixgames.com/pub/amazon/Afghanistan11-SetupBeta-v070.exe">Download over plain HTTP</a>
+	<div>
+	Test IFrame:<br>
+	<iframe width="100%" height="200px" src="https://int21.de/frametest/"></iframe>
+	<div>
+	Test IFrame PDF:<br>
+	<iframe width="100%" height="400px" src="https://research.google.com/pubs/archive/44678.pdf"></iframe>
+	<div>
 </body>
 </html>
