animation

animation 属性是一个简写属性，用于设置六个动画属性：

• animation-name
• animation-duration
• animation-timing-function
• animation-delay
• animation-iteration-count
• animation-direction

@keyframes myfirst
{
from {background: red;}
to {background: yellow;}
}

@-moz-keyframes myfirst /* Firefox */
{
from {background: red;}
to {background: yellow;}
}

@-webkit-keyframes myfirst /* Safari 和 Chrome */
{
from {background: red;}
to {background: yellow;}
}

@-o-keyframes myfirst /* Opera */
{
from {background: red;}
to {background: yellow;}
}

div
{
animation: myfirst 5s;
-moz-animation: myfirst 5s;	/* Firefox */
-webkit-animation: myfirst 5s;	/* Safari 和 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 和 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;}
}