Formatting content on load

Hello,

I have a strange thing that occurs on my website. When I use ckEditor, the content change when loading.

Example :
What is inside my textarea :

<p>&nbsp;
<p dir="ltr" style="line-height:1;margin-top:0pt;margin-bottom:0pt;"><strong style="background-color:#ffffff; color:#000000; font-family:ubuntu; font-size:13px; font-style:normal; font-variant:normal; font-weight:bold; text-decoration:none; vertical-align:baseline">Code colors 1 : ✏ Syntax</strong></p>
</p>

What is in the ckEditor source :

<p>&nbsp;</p>
<p dir="ltr"><strong>Code colors 1 : ? Syntax</strong></p>
<p>&nbsp;</p>

How could I disable content re-formatting on load ?

Thank you.