move button down on collapse expand
===

So I have the code to make my list drop down and back up. Now I want the button to go along with it both ways. I managed to get it down, but back up not so good. I was trying to add the button in a common div with the list, but it did not work because the button disappeared after clicked on time. So I really want to make it as stylistic as possible, it would be great to add a slowmotion effect and loading effect if possible.

here is the code again 

    Html
    <div id="right-column-sidebar">
    <ol>
    <li><a href="#">Title 1</a></li>
    <li><a href="#">Title 2</a></li>
    <li><a href="#">Title 3</a></li>
    <li><a href="#">Title 4</a></li>
    <li><a href="#">Title 5</a></li>
    <li><a href="#">Title 6</a></li>
    <li><a href="#">Title 7</a></li>
    <li><a href="#">Title 8</a></li>
    <li><a href="#">Title 9</a></li>
    <li><a href="#">Title 10</a></li>
    <li><a href="#">Title 11</a></li>
    <li><a href="#">Title 12</a></li>
    <li><a href="#">Title 13</a></li>
    <li><a href="#">Title 14</a></li>
    <li><a href="#">Title 15</a></li>
    <li><a href="#">Title 16</a></li>
    <li><a href="#">Title 17</a></li>
    <li><a href="#">Title 18</a></li>
     <li><a href="#">Title 19</a></li>
    <li><a href="#">Title 20</a></li>
    </ol>
    </div>
    CSS
    div#right-column-sidebar{position: absolute; right: -140px}

    div#right-column-sidebar ol{position:absolute; right: 150px;margin:    
    10px 0 10px 10px; font-size: 20px; color: red;list-style-type:none}

    div#right-column-sidebar ol li {list-style-type:none;margin: 10px 0 10px 0; border-    
    bottom: 1px dotted grey; width: 200px; display: block;}}

    div#right-column-sidebar ol li a{font-size: 60%; color: blue;margin-left: 20px}
    div#right-column-sidebar ol li:nth-child(11){margin-left:0;}      
    div#right-column-sidebar ol li a:hover{text-decoration: underline;}

    a.button {
    border: 1px solid lightgrey;no-repeat scroll top right;
    color: #444;
    display: block;
    float: left;
    font: normal 12px arial, sans-serif;
    height: 24px;
    margin-right: 6px;
    padding-right: 18px; /* sliding doors padding */
    text-decoration: none;
    }

    a.button span {
    display: block;
    line-height: 14px;
    padding: 5px 0 5px 18px;
    }
    Jquery
    $(function(){
     $('div#right-column-sidebar ol li:gt(9)').hide();
     $('a.button').click( function() { 
    $('div#right-column-sidebar ol li:gt(9)').toggle(); 
	$('a.button').addClass('change-height');
     });
    });
