Hi,
seems to be a GIGO problem (Garbage In - Garbage Out)
Please, revise the width in your HTML code:
<tr>
<td colspan="2" style="text-align: center;"
width="26%"> </td>
<td bgcolor="#308737" style="text-align: center;"
width="37%"><br />
<span style="color:#ffffff;font-size:20px;"><span style="color:#ffffff;font-size:20px;"> <strong>Visualization A</strong></span><br /></span>
</td>
<td bgcolor="#308737" style="text-align: center;"
width="37%"><span style="color:#ffffff;font-size:20px;"><span style="color:#ffffff;font-size:20px;"><strong>Visualization B</strong></span> </span></td>
<td bgcolor="#308737" style="text-align: center;"
width="37%"><span style="color:#ffffff;font-size:20px;"><span style="color:#ffffff;font-size:20px;"><strong>Visualization C</strong></span> </span></td>
</tr>
In total you distribute 137%.
With a setting of
20, 26, 26, 28 you get
Additionally set the width of zje table to 100%.
I only looked at the width, not at the other settings.
Joffm