Adding an image in a Joomla module adds an awful tag and border

i designed a simple website using joomla and i'm currently using beez3 template. i would like to add a simple image that can be clicked (as a hyper textual link) inside a module and place such module in a given position inside my template.

for such purpose, i created a new custom html module and placed inside it the following code:

<p><a href="http://ift.tt/1F7udTx">
<img src="images/hotel.jpg" alt="" width="250" height="180" /></a></p>

the image appears correctly where i wish, but it's surrounded by a kind of tab, whose title is the same i chose for module, that can be clicked, even if nothing happens when i do it. Here's how image appears, surrounded by tab (PARTNERS is the title i chose for module)

do you know how to remove such tab and its borders surrounding image?

thanks for help.