1<!DOCTYPE html>
2</html>
3 <head>
4 <script>
5 //one line comment
6 /*
7
8 multiline comment*/
9 </script>
10 <style>
11 /*
12
13 multiline comment*/
14 </style>
15 </head>
16 <body>
17 <!-- multiline comment
18
19 -->
20 </body>
21</html>