@media only screen and (-webkit-min-device-pixel-ratio: 2), 
only screen and (min-device-pixel-ratio: 2) {
header .navbar-brand img.logo_normal, header .navbar-brand img.logo_after_scroll{display: none !important;}
header .navbar-brand img.logo_retina:not(.logo_after_scroll){
display: block !important;
-webkit-background-size:100%; 
-moz-background-size:100%; 
-o-background-size:100%; 
background-size:100%;
}
header.header_after_scroll .navbar-brand img.logo_retina.logo_after_scroll{
display: block !important;
-webkit-background-size:100%; 
-moz-background-size:100%; 
-o-background-size:100%; 
background-size:100%;
}
.footer_logo .footer_logo_normal{display: none !important;}
.footer_logo .footer_logo_retina{
display: block !important;
-webkit-background-size:100%; 
-moz-background-size:100%; 
-o-background-size:100%; 
background-size:100%;
max-height: 35px;
text-align: center;
margin-left: auto;
margin-right: auto;
text-align: center;
}
.footer_logo.align-left .footer_logo_retina{
margin-left: 0;
text-align: left;
}
.hide-on-start .navbar-brand img.logo_retina, header.header_after_scroll .navbar-brand img.logo_retina{display: none !important;} .upb_video_class{background-color: #343434;}
}