ets</td>
             </tr>
             <tr>
               <td>trigger</td>
               <td>string</td>
               <td>'hover'</td>
               <td>how tooltip is triggered - hover | focus | manual</td>
             </tr>
             <tr>
               <td>title</td>
               <td>string | function</td>
               <td>''</td>
               <td>default title value if `title` attribute isn't present</td>
             </tr>
             <tr>
               <td>content</td>
             