*{position : relative ; /*Importante*/} 
#first{background-color:transparent;width: 950px;min-width:950px;text-align: left;margin:auto;vertical-align:top;
       min-height:99%;height:auto !important;height:99%;position:relative;}
#marco{width:980px;overflow:hidden;left:50%;margin-left:-490px;}
#Cabecera{height:80px;width:100%;}
#logo{float:left;margin-top:10px;margin-left:10px;}
#buscador{float:right;margin-top:5px;margin-right:10px;text-align:right;}
#btns{margin-right:0px;vertical-align:sub;}
#banderas{margin-top:0px;margin-right:0px;margin-bottom:20px;}
#banderas img{margin-left:-1px;margin-right:-1px;border: none;}
#Diapositiva{height:200px;width:100%;background-color:black;}
#botones{height:30px;width:100%;text-align:right;vertical-align:middle;background-color:#000000;margin-top:-30px;}
#botones img{margin-right:10px;}
#separador{height:12px;}
#filtro{text-align:right;}
#filtro h3{float:left;margin-left:20px;}
#Navegacion-Seccion{height:30px;width:100%;}
#Navegacion-SubSeccion{background-color:#FFFFFF;height:20px;width:100%;padding-top:5px;}
#Principal{background-color:#FFFFFF;height:100%;min-height:300px;width:100%;display:inline-block;}
#contenido{width:100%;height:auto;}
#contenedor{float:left;width:840px;min-width:840px;height:auto;border:1px dotted white;}
#menu{float:left;border-left: 1px #333333 dotted;width:112px;padding-left:0px;min-width:112px;height:auto;}
#Pie{height:28px;width:100%;}