CSS, типа:
<html>
<style>
a:hover{background-color:pink}
</style>
<body>
<table border="0">
<tr><td><a href="#">111</a></td><td>222</td><td>333</td></tr>
<tr><td><a href="#">111</a></td><td>222</td><td>333</td></tr>
<tr><td><a href="#">111</a></td><td>222</td><td>333</td></tr>
<tr><td><a href="#">111</a></td><td>222</td><td>333</td></tr>
</table>
</body>
</html>