.change_page {
	width: 100%;
	margin: 0 auto;
	text-align: center;
	border-spacing: 10px 0;
	border-collapse: separate;
	}

.change_page tr td{
	width: 20%;
	}

.change_page tr td a{
	background-color: #ff9;
	color: black;
	text-decoration: none;
	display: block;
	height: 100%;
	width: 100%;
	font-weight: bold;
	border: 2px gray solid;
	border-radius: 17px;
	-webkit-border-radius: 17px;
	-moz-border-radius: 17px;
	-khtml-border-radius: 17px;
	
	}