Tryit Editor v1.7

Source Code:

Result:

<!DOCTYPE html>
<html>
<head>
<style>
tr.collapse {visibility:collapse;}
</style>
</head>
<body>

<table border="1">
<tr>
<td>Peter</td>
<td>Griffin</td>
</tr>
<tr class="collapse">
<td>Lois</td>
<td>Griffin</td>
</tr>
</table>

<p><b>Note:</b> IE8 and earlier support visibility:collapse only if a !DOCTYPE is specified.</p>

</body>
</html>

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Source Code:	Result:
<!DOCTYPE html> <html> <head> <style> tr.collapse {visibility:collapse;} </style> </head> <body> <table border="1"> <tr> <td>Peter</td> <td>Griffin</td> </tr> <tr class="collapse"> <td>Lois</td> <td>Griffin</td> </tr> </table> <p><b>Note:</b> IE8 and earlier support visibility:collapse only if a !DOCTYPE is specified.</p> </body> </html>
Edit the code above and click "Submit Code" to see the result.	W3Schools.com - Try it yourself