20. Write a programme using <audio>,<video>;

<html>

<head>

<title>First Programme</title>
</head></title>
<body >
<audio controls>
<source src="song.mp3" type="audio/mp3">
</audio><br><br>
<video controls height="120" width="200">
<source src="video.mp3" type="video/mp3">
</video>
</body>
     </html>
Output:-



     

21.Write a programme using <ol>,<ul>,<li>

<html>
<head><title> first programme</title></head>
<body>
<ol type="A">
<li> Chandigarh</li><li> Ludhiana</li> <li> Dhuri</li> <li>Sangrur</li></ol>
<ul type="disc">
<li> Kerala </li> <li>Goa</li><li> West bengal</li><li> Punjab</li>
</ul>
types in ol :- 1, i, I, A, a<br>
types in ul :- disc , circle , square
</body>
</html>
output:-