在 前端页面中经常要加一些动效，css3的动画对一些小动效来说特别的方便。
1.对于只有开始和结束的动画
div { 100px; height:100px; background:red; animation:myfirst 5s; -moz-animation:myfirst 5s; /* Firefox */ -webkit-animation:myfirst 5s; /* Safari and Chrome */ -o-animation:myfirst 5s; /* Opera */ } @keyframes myfirst { from {background:red;} to {background:yellow;} } @-moz-keyframes myfirst /* Firefox */ { from {background:red;} to {background:yellow;} } @-webkit-keyframes myfirst /* Safari and Chrome */ { from {background:red;} to {background:yellow;} } @-o-keyframes myfirst /* Opera */ { from {background:red;} to {background:yellow;} } </style> </head> <body> <div></div>
2.阶段性动画
<style> div { width:100px; height:100px; background:red; animation:myfirst 5s; -moz-animation:myfirst 5s; /* Firefox */ -webkit-animation:myfirst 5s; /* Safari and Chrome */ -o-animation:myfirst 5s; /* Opera */ } @keyframes myfirst { 0% {background:red;} 25% {background:yellow;} 50% {background:blue;} 100% {background:green;} } @-moz-keyframes myfirst /* Firefox */ { 0% {background:red;} 25% {background:yellow;} 50% {background:blue;} 100% {background:green;} } @-webkit-keyframes myfirst /* Safari and Chrome */ { 0% {background:red;} 25% {background:yellow;} 50% {background:blue;} 100% {background:green;} } @-o-keyframes myfirst /* Opera */ { 0% {background:red;} 25% {background:yellow;} 50% {background:blue;} 100% {background:green;} } </style> </head> <body> <div></div>