CSS 中的动画属性column-rule-width

实例代码“Ctrl+/”提示“F11/ESC”全屏返回格式化恢复运行

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"> 
<title>手册网(www.shouce.ren)</title> 
<style> 
#myDIV {
    border: 1px solid black;
    /* Firefox */
    -moz-column-count: 3;
    -moz-column-rule: 1px outset red;
    /* Chrome, Safari, Opera */
    -webkit-column-count: 3;
    -webkit-column-rule: 1px outset red;
    -webkit-animation: mymove 5s infinite;
    /* Standard syntax */
    column-count: 3;
    column-rule: 1pxpx outset red;
    animation: mymove 5s infinite;
}

/* Chrome, Safari, Opera */
@-webkit-keyframes mymove {
    50% {-webkit-column-rule-width: 50px;}
}

/* Standard syntax */
@keyframes mymove {
    50% {
        -moz-column-rule-width: 50px; /* Firefox */
        column-rule-width: 50px;
    }
}
</style>
</head>
<body>

<p>column-rule-width 属性支持动画效果。</p>
<p><b>注意：</b>Internet Explorer 9 及更早 IE 版本不支持 CSS 动画。</p>

<p>逐步改变列的宽度，从 1px 到 50px:<p>
<div id="myDIV">
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</div>

</body>
</html>

​x
 
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"> 
<title>手册网(www.shouce.ren)</title> 
<style> 
#myDIV {
    border: 1px solid black;
    /* Firefox */
    -moz-column-count: 3;
    -moz-column-rule: 1px outset red;
    /* Chrome, Safari, Opera */
    -webkit-column-count: 3;
    -webkit-column-rule: 1px outset red;
    -webkit-animation: mymove 5s infinite;
    /* Standard syntax */
    column-count: 3;
    column-rule: 1pxpx outset red;
    animation: mymove 5s infinite;
}
​
/* Chrome, Safari, Opera */