body
{
background-image:url('../Extras/fondo.jpg');
}
*{ padding:0px; margin:0px; }
a{ color:#000000; }
.box{ 
		width: 305px; 
		height: 150px; 
		margin:10px; 
		float:left; 
		overflow: hidden;
	}
.double{ 
		width: 150px; 
		height: 150px; 
		margin-top:10px; 
		float:left; 
		overflow: hidden; 
	}
.box img{ 
			position: absolute; 
			top: 0; 
			left: 0; 
			border: 0; 
		}
.container {
      width: 640px;
      margin: 40px auto;
      text-align: left;
    }
    .tab-nav {
      width: 640px;
      overflow: hidden;
    }
    .tab-nav ul {
      position: relative;
      float: left; 
      width: 1600px;
      margin-left: 535px; 
      padding-left: 0;
      list-style-type: none;
    }
    .tab-nav li { 
      float: left;
      clear: left; 
    }

    .tab-nav a {
      display: block;
      float: left;
      text-align: center;
      text-decoration: none;
    }
/* second level */
    .tab-nav ul ul { float: left; width: auto; margin-left: 0;}
    .tab-nav li li {clear: none;}
    .tab-nav li li a { width: 100px; background-image: none;}
