<style type="text/css">
.main {
#   background-color: green;
    width: 760px; 
    margin: 0 auto;
    text-align: center;
}

.header {
    background-color: green;
}

th,td {
	border-width: 1px 1px 1px 1px;
#	padding: 1px 1px 1px 1px;
	border-style: inset inset inset inset;
	border-color: gray gray gray gray;
	background-color: white;
    text-align: center;
}

</style>