鉴于以下几点，我如何使我的最后一列自动调整大小？（最后一列应自动调整内容的宽度。假设我只有1 li元素应该收缩，而我只有3 li元素等等）：

            <table cellspacing="0" cellpadding="0" border="0">
            <thead><!-- universal table heading -->
                <tr>
                    <td class="tc first"><input type="checkbox" value="true" name="data-1-check-all" id="data-1-check-all"></td>
                    <td class="tc">Type</td>
                    <th>File</th>
                    <th>Sample</th>
                    <th>Action</th>
                </tr>
            </thead>
            <tbody>
                <tr>
                    <td>Division 1</td>
                    <td>Division 2</td>
                    <td>Division 3</td>
                    <td>Division 4</td>
                    <td>Division 5</td>
                </tr>
                <tr>
                    <td>Division 1</td>
                    <td>Division 2</td>
                    <td>Division 3</td>
                    <td>Division 4</td>
                    <td class="last">
                        <ul class="actions">
                            <li><a class="iconStats" href="#">Statystyki</a></li>
                            <li><a class="iconEdit" href="#">Edytuj</a></li>
                            <li><a class="iconDelete" href="#">Usuń</a></li>

                        </ul>
                    </td>
                </tr>
            </tbody>
        </table>

CSS：

table { table-layout: fixed; width: 100%; }
table tr { border-bottom:1px solid #e9e9e9; }
table thead td, th {border-left: 1px solid #f2f2f2; border-right: 1px solid #d5d5d5; background: #ddd url("../images/sprites4.png") repeat-x scroll 0 100% ; font-weight: bold; text-align:left;}
table tr td, th { border:1px solid #D5D5D5; padding:15px;}
table tr:hover { background:#fcfcfc;}
table tr ul.actions {margin: 0;}
table tr ul.actions li {display: inline; margin-right: 5px;}