#logo {position:absolute; left:0px; top:0px; width:181px; Height:57px;}
#banner {position:absolute; left:200px; top:4px; width:300px; Height:50px;text-align:center}
#carpetas {position:absolute; left:0px; width:100%; top:60px;}
#botones_nav {position:absolute; left:530px; top:12px; width:260px; Height:40px;}
#arriba1 {float:left; width:130px; Height:20px; text-align:center;}
#arriba2 {float:left; width:130px; Height:20px; clear:right; text-align:center;}
#abajo1  {float:left; width:130px; Height:20px; text-align:center;}
#abajo2  {float:left; width:130px; Height:20px; clear:right; text-align:center;}
#abajo3  {float:left; width:130px; Height:20px; text-align:center; padding-left:20px; }
.boton {border:none;}