header {
	text-align: center;
	font-size: 20px;
	font-family: Arial, Helvetica, sans-serif;
}

table { 
	margin-left: 10%;
	margin-right: 10%;
	border-collapse: collapse; 
	text-align: left; 
	width: 80%; 
}
#tabla{
	font: normal 12px/150% Arial, Helvetica, sans-serif; 
	background: #fff; 
	overflow: hidden; 
	border: 1px solid #A65B1A; 
	-webkit-border-radius: 3px; 
	-moz-border-radius: 3px;
	border-radius: 3px;
}
table td, table th { 
	padding: 3px 10px; 
}
table th {
	background:-webkit-gradient( linear, left top, left bottom, color-stop(0.05, #A65B1A), color-stop(1, #7F4614) );
	background:-moz-linear-gradient( center top, #A65B1A 5%, #7F4614 100% );
	filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#A65B1A', endColorstr='#7F4614');
	background-color:#A65B1A; 
	color:#FFFFFF; 
	font-size: 15px; 
	font-weight: bold; 
	border-left: 0px solid #BF691E; 
}
table td { 
	color: #7F4614; 
	background: #F0E5CC;
	border-left: 1px solid #D9CFB8;
	font-size: 12px;
	font-weight: normal;
}
#boton {
	text-align: center;
}
button{
	border:0px;
	background-color: blue;
	color: white;
	cursor: pointer;
}