Need help fixing css menu

[flybeta]

Ok so I'm trying to finish a unfinished design links were nothing fancy so I wanted add this css menu inside..

Works you click on the image then it just drops down then rolls back up when u click another one. You can see the menu I'm trying to use ul id= works until about half way down the menu then it breaks this layout and sends the "content" area to bottom of the page and starts to leaves a non filled in area after the links?

<div id="accordion">
 <div>
 <h3><img src="img/icons/addmembers.png" align="center" /><a href="#">Member Manager</a></h3>
 <div>
        <ul id="custommenu">
 <p><li><a href="addmember.php">Add Member</a></li></p>
 <p><li><a href="listmembers.php">Manage Members</a></li></p>
         </ul>
 </div>
 </div>

[milosevic]

Works you click on the image then it just drops down then rolls back up when u click another one. You can see the menu I'm trying to use ul id= works until about half way down the menu then it breaks this layout and sends the "content" area to bottom of the page and starts to leaves a non filled in area after the links?

Hi Flybeta, and welcome to webmaster world, I'm afraid I can't understand a word of this, could you explain again more carefully?