.wrapper_dos {width:889px; margin:0px; padding:0px;}

.menuholder_dos {background:none; list-style: none; margin:0px; padding:0px;}
.menuholder_dos li {float:left; }
.menuholder_dos a {background:url(imagenes/submenu_empresa.jpg) no-repeat;display:block; text-indent:-9000%;height:138px;}

.menu_queesmifibradiaria a { width:180px;}
.menu_misionvisionobjetivos a { width:238px; background-position:-180px 0px;}
.menu_estructuracorporativa a { width:269px; background-position:-418px 0px;}
.menu_estudiodemercado a { width:202px;  background-position:-687px 0px;}

.menu_queesmifibradiaria a:hover { background-position:0px -138px; }
.menu_misionvisionobjetivos a:hover { background-position:-180px -138px;}
.menu_estructuracorporativa a:hover { background-position:-418px -138px;}
.menu_estudiodemercado a:hover { background-position:-687px -138px;}

.menu_queesmifibradiaria a.active { background-position:0px -276px; }
.menu_misionvisionobjetivos a.active { background-position:-180px -276px;}
.menu_estructuracorporativa a.active { background-position:-418px -276px;}
.menu_estudiodemercado a.active { background-position:-687px -276px;}