Divs appearing from nowhere

[tomatedesign]

I had the following on a page

<li><span class="title">web: </span><!-- #BeginSnippet name="website" -->------<!-- #EndSnippet --></li>

when edited in SM by adding "none available" into the snipper it becomes

<li><span class="title">web: </span><!-- #BeginSnippet name="website" lastsavedts="2011-06-02 06:51:39" lastsavedby="editor"  --><div style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; background-color: #ffffff">none available</div><!-- #EndSnippet --></li>

so it's added in a div

<div style="font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; background-color: #ffffff">

which I really, really don't want.

Why's this being added and how can I prevent it from doing so? I noticed in the path at the bottom of the window that it becomes path: div for some reason.

[admin]

When adding the text, are you selecting "format" form the style dropdown?  Or "paragraph"? 

[tomatedesign]

not touching that at all - in the code I added the snippet inside the <li> so the site owner had no opportunity to mess things up

<li><span class="title">web: </span><!-- #BeginSnippet name="website" -->------<!-- #EndSnippet --></li>

they just get into the snippets and add in the appropriate text - except in some instances it starts adding in random divs.