non c'è bisogno di javascript

<html>
<head>
<title>Untitled</title>
<style type="text/css">
html, body {height:100%}
body {background:silver}
a {display:block;
color:white;
text-decoration:none;
padding-top:50px;
padding-bottom:50px;
text-align:center;
border:1px solid blue
}
a:hover {color:yellow;
background:blue;
border:1px solid yellow;
font-weight:bold;
}
td {width:100px;
background:gray;
}
</style>
</head>
<body>
<table>
<tr>
<td><a href="#">
Vediamo
</a></td>
<td>testo normale</td>
</tr>
</table>
</body>
</html>