.titulos_navegacao{
font-family: Arial;
font-size: 11px;
color: dimgray;
font-weight: bold;
background-color: #F7F7F7;
border-bottom: 1px solid gainsboro;
border-top: 2px solid #ffffff;
border-bottom: 1px solid gainsboro;
border-left: 3px solid #ffffff;
border-right: 3px solid #ffffff;
width: 99%;
}
.links_titulos{
color: dimgray;
text-decoration: none;
}
.links_titulos:hover{
color: #FFA814;
text-decoration: underline;
}