what is difference between 3rd and 4th line

Question

https://code.sololearn.com/WcP3jR18hB70/?ref=app

Answer 1

here the fixed code

<table border="2">
<tr>
<td bgcolor="red">Red</td>
<td bgcolor="blue">Blue</td>
<td>Green</td>
</tr>
<tr>
<td>Yellow</td>
<td colspan="2">Orange</td>
</tr>
</table>

Answer 2

There is mistake in 4th line. bgcolor should be used as an attribute of td tag, you have closed the tag and then written the bgcolor.
it should
<td bgcolor="red">Red</td>
<td bgcolor="blue">Blue</td>

not
<td bgcolor="red">Red</td>
<td>bgcolor="blue">Blue</td>