.lightbox { display:none; position:fixed; z-index:999; left:0; top:0; width:100%; height:100%; background-color:rgba(0,0,0,0.9); overflow:auto; }
.lightbox-content { margin:5% auto; display:block; max-width:90%; }
.close { position:absolute; top:20px; right:35px; color:#fff; font-size:40px; font-weight:bold; cursor:pointer; }
#caption { text-align:center; color:#ccc; padding:10px 0; }