css3 实现动画
CSS3,我们可以创建动画,它可以取代许多网页动画图像,例如下面这个小球动画
使用css3关键帧动画可以轻松实现
请看下面代码
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>关键帧动画</title> </head> <style type="text/css"> @keyframes move { 10%{ transform: translate(50px,50px) } 30%{ transform: translate(150px,150px) scale(1.5); } 50%{ transform: translate(250px,150px) scale(1); } 70%{ transform: translate(350px,250px) scale(2); } 100%{ transform: translate(0px,0px) scale(1); } } @-webkit-keyframes move { 10%{ -webkit-transform: translate(50px,50px) } 30%{ -webkit-transform: translate(150px,150px) scale(1.5) } 50%{ -webkit-transform: translate(250px,150px) scale(1) } 70%{ -webkit-transform: translate(350px,250px) scale(2) } 100%{ -webkit-transform: translate(0px,0px) scale(1) } } .box{ width: 30px; height: 30px; background-color: pink; border-radius: 50%; /* 规定 @keyframes 动画的名称 */ animation-name:move; -webkit-animation-name:move; -o-animation-name:move; -ms-animation-name:move; -moz-animation-name:move; /* 规定动画完成一个周期所花费的秒 默认是 0 */ animation-duration:1s; -webkit-animation-duration:1s; -o-animation-duration:1s; -ms-animation-duration:1s; -moz-animation-duration:1s; /* 规定动画的速度曲线。默认是 "ease" */ animation-timing-function: linear; -webkit-animation-timing-function: linear; -o-animation-timing-function: linear; -ms-animation-timing-function: linear; -moz-animation-timing-function: linear; /* 规定动画何时开始。默认是 0 */ animation-delay: 0; -webkit-animation-delay: 0; -o-animation-delay: 0; -ms-animation-delay: 0; -moz-animation-delay: 0; /* 规定动画被播放的次数。默认是 1 */ animation-iteration-count: infinite; -webkit-animation-iteration-count: infinite; -o-animation-iteration-count: infinite; -ms-animation-iteration-count: infinite; -moz-animation-iteration-count: infinite; } </style> <body> <div class="box"></div> </body> </html>
动画类型不仅仅局限于 translate(平移) 还可以是 scale(缩放)rotate(旋转)等