.block-header .navbar-brand.logo-header-sm{display:none;}
.block-header.fixed .navbar-brand.logo-header-lg{display:none;}
.block-header.fixed .navbar-brand.logo-header-sm{display:block; padding-top:0px; padding-bottom:0px;}
.block-header.fixed .navbar-brand.logo-header-sm img{max-width:120px;}
.block-header.fixed .navbar {padding-top:0px; padding-bottom:0px;}

.centrar{text-align:center;}

a.btn-default.active{color: white !important;}