.Navdown { float: right; width: 8%; margin-top: 0.5em; padding: 0; }

.Navdown ul { text-align: right; margin: 0; padding: 0; list-style: none;} 

.Navdown a { font-weight: bold; padding: 0.5em; font-size: 2em; color: #0973C5; }


.Navdown a:hover { font-weight: bold; font-size: 2em; color: #fff; margin-buttom: 0; }  


*{margin: 0; padding: 0;}

.menudown li{ position:relative; float:right; width: 100%; list-style: none; } 
.menudown li a{color:#FFF; text-decoration:none; padding:5px 10px; display:block;}
.menudown li a:hover{background: #1E90FF; color:#FFF; -moz-box-shadow:0 3px 10px 0 #CCC; -webkit-box-shadow:0 3px 10px 0 #ccc; text-shadow:5px #fFF;  }
.menudown li   ul{position:absolute; top:0.4em; right:1em; background-color:#1A3253; display:none;  } 
.menudown li   ul.ativo{display: block;}
.menu li.over ul{display:block;} 
.menudown li ul li{border:1px solid #c0c0c0; display:block; width:38.5em; height:35px;  }

@media screen and (min-width: 581px) {
.btn-toggle{display: block;}
.Navdown {display: none;}}

@media screen and (max-width: 580px) {
.Navdown {  width: 17%; margin-left: 4em;margin-right: -1.8em; }}

@media screen and (max-width: 430px) {
.Navdown {  width: 20%; /*margin-right: -3.5em;*/ }}

@media screen and (max-width: 370px) {
.Navdown {  width: 22%; /*margin-right: -4em;*/ }}

@media screen and (max-width: 330px) {
.Navdown {  width: 26%; }}