css3 动画属性

1.css3动画属性

2.@keyframes规则

@keyframes animationname {keyframes-selector {css-styles;}}

3.animation（动画） 属性

animation: name duration timing-function delay iteration-count direction fill-mode play-state;

4.animation name 属性

5.animation duration属性

6.animation-timing-function 属性

7.animation-fill-mode 属性

animation-fill-mode 属性规定当动画不播放时（当动画完成时，或当动画有一个延迟未开始播放时），要应用到元素的样式。

8.animation-delay

9.animation-iteration-count

10.animation-direction

是否循环交替反向播放动画

注意：如果动画被设置为只播放一次，该属性将不起作用。

11.animation-play-state

12.实例

div
{
	width:100px;
	height:100px;
	background:red;
	position:relative;
	animation-name:myfirst;
	animation-duration:5s;
	animation-timing-function:linear;
	animation-delay:2s;
	animation-iteration-count:infinite;
	animation-direction:alternate;
	animation-play-state:running;
	/* Safari and Chrome: */
	-webkit-animation-name:myfirst;
	-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;
}

@keyframes myfirst
{
	0%   {background:red; left:0px; top:0px;}
	25%  {background:yellow; left:200px; top:0px;}
	50%  {background:blue; left:200px; top:200px;}
	75%  {background:green; left:0px; top:200px;}
	100% {background:red; left:0px; top:0px;}
}

@-webkit-keyframes myfirst /* Safari and Chrome */
{
	0%   {background:red; left:0px; top:0px;}
	25%  {background:yellow; left:200px; top:0px;}
	50%  {background:blue; left:200px; top:200px;}
	75%  {background:green; left:0px; top:200px;}
	100% {background:red; left:0px; top:0px;}
}

简化写法：

animation:myfirst 5s linear 2s infinite alternate;
	/* Firefox: */
	-moz-animation:myfirst 5s linear 2s infinite alternate;
	/* Safari and Chrome: */
	-webkit-animation:myfirst 5s linear 2s infinite alternate;
	/* Opera: */
	-o-animation:myfirst 5s linear 2s infinite alternate;
}