body { font-family: Helvetica, Arial;
      background-color: rgb(51, 153, 153);
    margin-bottom: 0px; padding-bottom: 0px;
    }
<!--
a:link {
color: #FFFFFF;
text-decoration: none;
}
a:visited {
text-decoration: none;
color: #FFFFFF;
}
a:hover {
text-decoration: none;
color: #FFFFFF;

}
a:active {
text-decoration: none;
color: #FFFFFF;

}	

a.other:link {
color: #339999;
text-decoration: none;

}
a.other:visited {
text-decoration: none;
color: #339999;

}
a.other:hover {
color: #ffffff; background:  #339999;}
a.other:active {
text-decoration: none;
color: #339999;

}
a.other:active {
text-decoration: none;
color: #339999;

}	

a.other2:link {
color: #FFFFFF;
text-decoration: none;
font-weight: bold;
}
a.other2:visited {
text-decoration: none;
color: #FFFFFF;
font-weight: bold;
}
a.other2:hover {
color: #339999; font-weight: bold; text-decoration: none; background: #ffffff; 

}
a.other2:active {
text-decoration: none;
color: #FFFFFF;


}

a.other3:link {
color: #339999;
text-decoration: none;
font-weight: bold;
background: #ffffff;
}
a.other3:visited {
color: #339999;
text-decoration: none;
font-weight: bold;
background: #ffffff;
}
a.other3:hover {
text-decoration: none;
font-weight: bold;
color: #FFFFFF;
background:  #ffcc11;

}
a.other3:active {
color: #339999;
text-decoration: none;
font-weight: bold;
background: #ffffff;

}	

a.other4:link {
color: #ffcc11;
text-decoration: none;
font-weight: bold;
}
a.other4:visited {
text-decoration: none;
color: #ffcc11;
font-weight: bold;
}
a.other4:hover {
color:#ffffff; font-weight: bold; text-decoration: none; background: #ffcc11; 

}
a.other4:active {
text-decoration: none;
color: #ffcc11;


}

}
a.sumario:link {
color: #FFFFFF;
text-decoration: none;

}
a.sumario:visited {
text-decoration: none;
color: #FFFFFF;

}
a.sumario:hover {
color: #ffcc11; text-decoration: none; 

}
a.other2:active {
text-decoration: none;
color: #003333;
font-weight: bold;

}


  p { text-align: justify;
text-indent:2em; 
}

p.hangingindent {
    padding-left: 30px ;
    text-indent: -30px ;
}




div.contenidos { margin: 0em;
  padding: 0m;
  background: rgb(0, 102, 102) /*none repeat scroll 0% 50%*/;
  width: 13em;
  position: absolute;
  top: 0px;
  left: 0px;
  font-size: 10pt;
  font-weight: bold; 	
  color: white;
  line-height: 2em;
 text-align: center;

div.hangingindent {
    padding-left: 22px ;
    text-indent: -22px ;
}



  /*    display: table;*/
}
div.principal {position: relative;
left: 30%; top: auto; 
margin-bottom: 0px; padding-bottom: 0px; style-width: 100%; z-index: 1;
font-size: 11pt;
line-height: 1.3em;
color: white;
text-align: justify;
    }
div.articulo {position: relative;
left: 30%; top: auto;
margin-bottom: 0px; padding-bottom: 0px; width: 75%; z-index: 1;
font-size: 11pt;
line-height: 1.5em;
color: white;
text-indent: 1em;
    }
   div.titulo {position: relative;
left; top: auto;
margin-bottom: 0px; padding-bottom: 0px;width: 100%; z-index: 1;
font-size: 19pt;
line-height: 1.4em;
color: white;
text-align: left;    }

div.pie {position: absolute; top: 570px; left: 0 px;  
  font-size: 9pt;
  color: white;
  text-align: left;
       }

div.pie3 {position: relative; bottom: -5%; left: 0 px;  
  font-size: 9pt;
  color: white;
  text-align: left;
       }


div.pie5 {position: relative; top: -5%; left: 0 px;  
  font-size: 9pt;
  color: white;
  text-align: left;
       }

  #navegar li ul { position: absolute;
    left: -999em;
    }
  #navegar, #navegar ul { margin: 0pt;
    padding: 0pt;
    list-style-type: none;
    list-style-image: url('none');
    list-style-position: outside
    }
    
      #navegar, #navegar li ul{ margin: 0pt;
    padding: 0pt;
    list-style-type: none;
    list-style-image: url('none');
    list-style-position: outside
           }



/*  #navegar li {
 float: left;
 text-decoration: none;
 display: table-cell;
 display: block;*/
/* vertical-align: middle;*/
/* width: 100%;  Estaba en 100% antes, pero es lo que hacía que no funcionara en el explorer.
  con 13em va bien, pero entonces arreglar la decoración.
 width: 13em;  Poniendo un asterisco delante solamente lo lee el M$IE
width: 100%; Éste era el valor ideal pero falla en konqueror.*/
/* height: 2em;
/* margin: auto; esto no parece valer para nada.*/
/* color: white;
}*/

 #navegar li:hover ul, #navegar li.sfhover ul {
    position: absolute;
    left: 13.5em; 
/*    top:auto;*/
    background-color: rgb(0, 102, 102);
    font-size: 9pt;
    width: 11em;
/*    height: 100%;
    margin-top: -10%;  era -1.25 em */
    margin-top: -7ex;
    z-index: 3;
    }

    
#navegar li:hover, div.contenidos a:hover, #navegar li.sfhover {
    background-color: rgb(0, 51, 51);
    color: white;
 }

div.contenidos a.nomenu {
  display: block;
/*  color: white;
  text-decoration: none;*/
}

div.contenidos a {
  color: white;
	text-decoration:none;
}


div.contenidos a:hover.img {background-color:transparent;/*width:100%;*/}

div.contenidos a:hover.normal {background-color:rgb(51, 153, 153);/*width:100%;*/}