[iWD]

If you can just add a row for your lines as balinor said.
"Just use html to add a new row below the search bar and paste your code there."

Then you should be able to use the html code of <tr>content here</tr>
These tags make a row.
With html it is usually wise for all rows to have cells so it would be
<tr><td>content here</td></tr>
make sure you have the closing tags!
Then you can add a line within the row/cell and set it up that way.
Assuming you want this straight across?
and assuming I am taking the hint from balinor right.
If not disregard this post!

Hopefully this helps!
Keep us posted!