.drop{background:-webkit-gradient(linear,0 0,0 100%,from(rgba(13,52,58,1)),to(rgba(255,255,255,.5)));background:-moz-linear-gradient(top,rgba(13,52,58,1) 0,rgba(255,255,255,.5) 100%);width:1px;height:89px;position:absolute;bottom:200px;-webkit-animation:fall .63s linear infinite;-moz-animation:fall .63s linear infinite}@-webkit-keyframes fall{to{margin-top:900px}}@-moz-keyframes fall{to{margin-top:900px}}@keyframes fall{to{margin-top:900px}}