#body{ background: #f7f7f7; }
#box-login{ width: 280px; margin: auto; margin-top: 20px; text-align: center; border-bottom: 6px solid #2961b0; padding: 20px; background: #f6f6f6; }

#topo{ background: #e6e6e6; border-bottom: 1px solid #cbcbcb; }
#menu{ list-style: none; float: right; display: inline-block; margin-top: 55px; }
#menu li{ float: left; display: table-cell; vertical-align: middle; }
#menu a{ display: block; padding: 5px 10px; text-decoration: none; }
#menu a:hover{ border-bottom: 3px solid #2961b0; }

.campo-serial{ padding: 15px !important; font-size: 1.3em !important; font-weight: bold !important; }