css3 @keyframes attribute
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UK [freɪmz] US [freɪmz]
n. border; frame (plural noun of frame); glasses frame; organization
css3 @keyframes attributesyntax
Function:Through the @keyframes rule, you can create animations.
Description: The principle of creating animation is to gradually change one set of CSS styles into another set of styles. You can change this set of CSS styles multiple times during the animation. Specifies when the change occurs as a percentage, or via the keywords "from" and "to", which are equivalent to 0% and 100%. 0% is the start time of the animation, 100% is the end time of the animation. For best browser support, you should always define 0% and 100% selectors.
Note: Please use the animation property to control the appearance of the animation and bind the animation to the selector.
The @keyframes attribute in css3 indicates that animation can be created through the @keyframes principle, that is, one set of CSS styles will gradually change into another set of styles
css3 @keyframes attributeexample
<!DOCTYPE html>
<html>
<head>
<style>
div
{
width:100px;
height:100px;
background:red;
position:relative;
animation:mymove 5s infinite;
-moz-animation:mymove 5s infinite; /* Firefox */
-webkit-animation:mymove 5s infinite; /* Safari and Chrome */
-o-animation:mymove 5s infinite; /* Opera */
}
@keyframes mymove
{
0% {top:0px;}
25% {top:200px;}
75% {top:50px}
100% {top:100px;}
}
@-moz-keyframes mymove /* Firefox */
{
0% {top:0px;}
25% {top:200px;}
75% {top:50px}
100% {top:100px;}
}
@-webkit-keyframes mymove /* Safari and Chrome */
{
0% {top:0px;}
25% {top:200px;}
75% {top:50px}
100% {top:100px;}
}
@-o-keyframes mymove /* Opera */
{
0% {top:0px;}
25% {top:200px;}
75% {top:50px}
100% {top:100px;}
}
</style>
</head>
<body>
<p><b>注释：</b>本例在 Internet Explorer 中无效。</p>
<div></div>
</body>
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