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Question

I have changed first row like <tr> columns</tr> in to <th>columns</th> now see the output...please define output how is it so????link of code is below.....

https://code.sololearn.com/WVOUQ1U3PFw1/?ref=app

Answer 1

You may only change the column tags to header tags. The row tags have to be row tags even for the heading:

<tr>
<th>Day</th>
<th>Mon</th>
<th>Tue</th>
<th>Wed</th>
<th>Thu</th>
<th>Fri</th>
</tr>

Answer 2

A row is a row and not a header.

Answer 3

Then what about output i got after change.....
How is it so???