javascript - Weird margin when using .prependTo() -

I have a problem understanding the following behavior: I have a container ; Div & gt; in which some inline-block & lt; Div & gt; Nodes are included Example:

< / P>

Now I need to, the new foobar inline-block & lt; Div & gt; No problem to fill the elements, use jQuery - & gt; .prependTo () To protect (applied to the parent container) now comes the issue, for the first time .prependTo () using a "something, somewhere" Example:

As you can see, this is the margin of only the very first element (again, I do not track the location using firebug / devoots. So, it does not think so). All further insertions are just fine, using the .insertBefore () code on the first code also works fine and looks great. Unfortunately, I use .inertBefore () , this is the reason why I am asking for some heads here.

What do I miss? Where does this strange margin / difference come from?

I only tested on Firefox 4/5/6 so far.

This is the white spot inside your parents div (i.e. line segment) It becomes clean for a simple space by HTML renderer. Remove it:

  & lt; Div id = "region" & gt; & Lt; / Div & gt;