table {
margin:0 20px;
width:800px;
}

th {
-moz-background-clip:border;
-moz-background-inline-policy:continuous;
-moz-background-origin:padding;
background:#CCDDCC none repeat scroll 0 0;
padding:10px;
width:25%;
}

td {
-moz-background-clip:border;
-moz-background-inline-policy:continuous;
-moz-background-origin:padding;
background:#EEEEEE none repeat scroll 0 0;
padding:10px;
text-align:left;
}