css样式:td事件触发样式改变

"http://www.w3.org/TR/xhtml1/Dtd/xhtml1-strict.dtd">

/*

body {
background:#aaaaaa;
}

#container {
width:500px;
margin:auto;
}

#tbl {
background:#ffffff;
border:solid 1px #000000;
}

.cell {
width:100px;
height:100px;
border:solid 1px #000000;
}

/*//]]>*/

hello world