@keyframes redImg{0%{top:0}to{top:100%}}.redBox{position:absolute;z-index:10000;animation:redImg 3s linear infinite;-webkit-animation:redImg 3s linear infinite;-moz-animation:redImg 3s infinite linear;-ms-animation:redImg 3s infinite linear;-o-animation:redImg 3s infinite linear;position:fixed}.redBox img{display:block;width:5rem;height:6.5rem}