#cuhk a:after{ display:block; height:100%; content:url("../img/cuhkLogo.png") }
#ilc a:after{ display:block; height:100%; content:url("../img/ilcLogo.png") }
#lApp a:after{ display:block; height:100%; content:url("../img/logo.png") }
#cuhk, #ilc, #lApp { background:none; }

#pageBG { display: none; }