css多重背景教程,多重背景的CSS动画

CSS背景动画在很长时间内一直是一个热门话题，主要因为不需要额外的元素，看起来效果也不错。如果是有多重背景的CSS动画呢，下面我们来看下是如何实现的。

先上个效果图：

多重背景的CSS动画效果图

CSS代码

[css]

@keyframes animatedBird {

from {

background-position: 20px 20px, 30px 80px, 0 0;

}

to {

background-position: 300px -90px, 30px 20px, 100% 0;

}

}

@-webkit-keyframes animatedBird {

from {

background-position: 20px 20px, 30px 80px, 0 0;

}

to {

background-position: 300px -90px, 30px 20px, 100% 0;

}

}

@-ms-keyframes animatedBird {

from {

background-position: 20px 20px, 30px 80px, 0 0;

}

to {

background-position: 300px -90px, 30px 20px, 100% 0;

}

}

@-moz-keyframes animatedBird {

from {

background-position: 20px -90px, 30px 80px, 0 0;

}

to {

background-position: 300px -90px, 30px 20px, 100% 0;

}

}

.animate-area2 {

width: 560px;

height: 190px;

background-image: url(twitter-logo-bird.png), url(treehouseFrog.png), url(bg-clouds.png);

background-position: 20px -90px, 30px 80px, 0px 0px;

background-repeat: no-repeat, no-repeat, repeat-x;

animation: animatedBird 4s linear infinite;

-ms-animation: animatedBird 4s linear infinite;

-moz-animation: animatedBird 4s linear infinite;

-webkit-animation: animatedBird 4s linear infinite;

overflow: hidden;

}

[/css]

HTML代码

[html]

[/html]