CSS样式更改——过渡、动画

div
{
transition: width 1s;
-moz-transition: width 1s;  /* Firefox 4 */
-webkit-transition: width 1s;  /* Safari 和 Chrome */
-o-transition: width 1s;  /* Opera */
}
transition-property:应用过渡的Css属性的名称 比如宽度width
transition-duration:过渡效果花费的时间   比如1s
transition-timing-function:渡效果的时间曲线 如下所示：
linear 匀速
ease 先慢后快
ease-in 慢速开始
ease-out 慢速结束
ease-in-out 慢速开始和结束
cubic-bezier(n,n,n,n) 在cubic-bezie 函数中定义自己的值，可能的值是0至1之间的数值
transition-delay:过渡效果何时开始 如1s

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

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

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

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

@keyframes my
{
0%   {background: red;}
25%  {background: yellow;}
50%  {background: blue;}
100% {background: green;}
}

@-moz-keyframes my /* Firefox */
{
0%   {background: red;}
25%  {background: yellow;}
50%  {background: blue;}
100% {background: green;}
}

@-webkit-keyframes my /* Safari 和 Chrome */
{
0%   {background: red;}
25%  {background: yellow;}
50%  {background: blue;}
100% {background: green;}
}

@-o-keyframes my /* Opera */
{
0%   {background: red;}
25%  {background: yellow;}
50%  {background: blue;}
100% {background: green;}
}

div
{
animation-name: my;
animation-duration: 5s;
animation-timing-function: linear;
animation-delay: 2s;
animation-iteration-count: infinite;
animation-direction: alternate;
animation-play-state: running;
/* Firefox: */
-moz-animation-name: my;
-moz-animation-duration: 5s;
-moz-animation-timing-function: linear;
-moz-animation-delay: 2s;
-moz-animation-iteration-count: infinite;
-moz-animation-direction: alternate;
-moz-animation-play-state: running;
/* Safari 和 Chrome: */
-webkit-animation-name: my;
-webkit-animation-duration: 5s;
-webkit-animation-timing-function: linear;
-webkit-animation-delay: 2s;
-webkit-animation-iteration-count: infinite;
-webkit-animation-direction: alternate;
-webkit-animation-play-state: running;
/* Opera: */
-o-animation-name: my;
-o-animation-duration: 5s;
-o-animation-timing-function: linear;
-o-animation-delay: 2s;
-o-animation-iteration-count: infinite;
-o-animation-direction: alternate;
-o-animation-play-state: running;
}

animation-name                   选择器的 keyframes 的名称
animation-duration               动画所花费的时间
animation-timing-function        匀速播放动画
animation-delay           动画过多久开始
animation-iteration-count        播放动画次数
animation-direction       是否在下一周期逆向地播放 normal 正常播放  alternate 轮流反向播放
animation-play-state             暂停动画  paused 动画已暂停  running 动画正在播放
animation-fill-mode
none         不填充
forwards     当动画完成后，保持最后一个属性值
backwards     在animation-delay 所指定的一段时间内，在动画显示之前，应用开始属性值
both        向前和向后填充模式都被应用。