body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, fieldset, input, textarea, p, blockquote, th, td { margin: 0; padding: 0;  }
table{ border-collapse: collapse; border-spacing: 0; }
fieldset, img { border:0; }
address, caption, cite, code, dfn, em, strong, th, var { font-style: normal; font-weight: normal; }
ol, ul { list-style:none; }
caption, th {text-align:left; }
select, input, textarea { font : 99% arial, helvetica, clean, sans-serif; }
h1, h2, h3, h4, h5, h6 { font-size: 100%; font-weight: normal; }
abbr, acronym, dfn { border-bottom: 1px dotted #999999; cursor: help; }
pre { width: 100%; padding: 1em; color: #000000; font-size: 13px; text-align: left; background: #ffffff; border: 1px solid #000000; }	
em { color: #000000; }	

.clear_both { clear: both;}	
.display_none { display: none;}		
.float_left { float: left;}	
.float_right { float: right;}

body {
	font-family: arial, helvetica, clean, sans-serif;
	background-color: #000000;
}

table {
	height: 100%;
	width: 100%;
}

div#contenedor {
	width: 900px;
	margin: 0 auto;
	background-color: black;
}