先看下演示效果：
底部出現(xiàn)3秒消失的CSS3效果
下面是實現(xiàn)代碼，此效果是手機響應(yīng)式效果，建議手機瀏覽測試
<!DOCTYPE html><html><head><meta charset="UTF-8"><title>Document</title></head><style type="text/css">*{margin: 0px;padding: 0px;}.pay_tips_animation_up{position: fixed;height: 56px;background: #FC000C;width: 100%;bottom: -56px;animation:myfirst 3s none;animation-direction:alternate;animation-iteration-count:1;/* Safari and Chrome */-webkit-animation:myfirst 3s none;-webkit-animation-direction:alternate;-webkit-animation-iteration-count:1; /* Safari 和 Chrome */}@keyframes myfirst{0% {background:green; bottom:-56px;}25% {background:#999; bottom:0px;}50% {background:#333; bottom:0px;}75% {background:yellow; bottom:0px;}100%{background:blue; bottom:-56px;}}@-webkit-keyframes myfirst /* Safari and Chrome */{0% {background:green; bottom:-56px;}25% {background:#999; bottom:0px;}50% {background:#333; bottom:0px;}75% {background:yellow; bottom:0px;}100%{background:blue; bottom:-56px;}}</style><body><div class="pay_tips_animation_up ddd">11</div></body></html>新聞熱點
疑難解答
