给tr整行加删除线的技巧

给tr行，整行加删除线的html,用得着的，拿走。关键代码，有下划线部分

<div style="width: 550px; height: 100px; border:solid 1px orange;overflow:scroll">

<table cellpadding="0" cellspacing="1" style="background-color:black;width:500px">

     <tbody>

         <tr>

             <td style="background-color:white"><input type="checkbox" /></td>

             <td style="background-color:white">cccc</td>

             <td style="background-color:white">cccc</td>

         </tr>

         <tr>

             <td style="background-color:white; overflow:visible;width:100px;">

             <div style="position: relative; ">

                <input type="checkbox" />

                <div style="width: 500px; position: absolute; top: 9px;border-bottom:solid 1px #000 ">

             </div>

             </div>

             </td>

             <td style="background-color:white">cccc</td>

             <td style="background-color:white">cccc</td>

         </tr>

         <tr>

             <td style="background-color:white"><input type="checkbox" /></td>

             <td style="background-color:white">cccc</td>

             <td style="background-color:white">cccc</td>

         </tr>

         <tr>

             <td style="background-color:white"><input type="checkbox" /></td>

             <td style="background-color:white">cccc</td>

             <td style="background-color:white">cccc</td>

         </tr>

         <tr>

             <td style="background-color:white"><input type="checkbox" /></td>

             <td style="background-color:white">cccc</td>

             <td style="background-color:white">cccc</td>

         </tr>

     </tbody>

</table>

</div> 

	cccc	cccc
	cccc	cccc
	cccc	cccc
	cccc	cccc
	cccc	cccc