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