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公告

查看效果:
http://hovertree.com/texiao/css3/37/

先来个简单的示例,例如:

@keyframes hovertreemove
{
from {top:30px;}
to {top:130px;}
}

效果:
http://hovertree.com/texiao/css3/37/1.htm

可以通过 @keyframes 规则,创建动画。

创建动画的原理是,将一套 CSS 样式逐渐变化为另一套样式。
在动画过程中,您能够多次改变这套 CSS 样式。
以百分比来规定改变发生的时间,或者通过关键词 "from" 和 "to",等价于 0% 和 100%。
0% 是动画的开始时间,100% 动画的结束时间。
为了获得最佳的浏览器支持,您应该始终定义 0% 和 100% 选择器。

以下为上下运动的代码:

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title>css3使用animation和@keyframes制作动画_何问起</title>
    <meta charset="utf-8" />
    <style>
@keyframes hovertreemove
{
from {top:30px;}
to {top:130px;}
}
#hovertreekf{
    width:80px;height:80px;
    border:1px solid red;
    position:absolute;
    background:url(http://hovertree.com/themes/hvtimages/smile.png) no-repeat center;
    animation:hovertreemove /*动画样式名称*/
        1s /*动画时间*/
    linear /*线性运动*/
        infinite /*无限播放*/
        alternate/*往返动画*/;
}
  a{color:blue;text-decoration:none;}  </style>
</head>
<body><a href="http://hovertree.com/h/bjaf/i309b77d.htm" target="_blank">说明</a>
    <div id="hovertreekf"></div>
</body>
</html>

以下为圆形扩散运动的代码:

<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <title>纯css3圆形从中心向四周扩散动画效果_何问起</title>
    <style>
        @keyframes warn {
            0% {
                transform: scale(0.3);
                -webkit-transform: scale(0.3);
                opacity: 0.0;
            }

            25% {
                transform: scale(0.3);
                -webkit-transform: scale(0.3);
                opacity: 0.1;
            }

            50% {
                transform: scale(0.5);
                -webkit-transform: scale(0.5);
                opacity: 0.3;
            }

            75% {
                transform: scale(0.8);
                -webkit-transform: scale(0.8);
                opacity: 0.5;
            }

            100% {
                transform: scale(1);
                -webkit-transform: scale(1);
                opacity: 0.0;
            }
        }

        @keyframes warn1 {
            0% {
                transform: scale(0.3);
                -webkit-transform: scale(0.3);
                opacity: 0.0;
            }

            25% {
                transform: scale(0.3);
                -webkit-transform: scale(0.3);
                opacity: 0.1;
            }

            50% {
                transform: scale(0.3);
                -webkit-transform: scale(0.3);
                opacity: 0.3;
            }

            75% {
                transform: scale(0.5);
                -webkit-transform: scale(0.5);
                opacity: 0.5;
            }

            100% {
                transform: scale(0.8);
                -webkit-transform: scale(0.8);
                opacity: 0.0;
            }
        }

        .container {
            position: relative;
            width: 40px;
            height: 40px;
            /*border: 1px solid #000; hovertree.com */
        }
        /* 保持大小不变的小圆圈 何问起 */
        .dot {
            position: absolute;
            width: 92px;
            height: 92px;
            left: 120px;
            top: 120px;
            -webkit-border-radius: 50%;
            -moz-border-radius: 50%;
            border: 2px solid red;
            border-radius: 50%;
            z-index: 2;
        }
        /* 产生动画(向外扩散变大)的圆圈  */
        .pulse {
            position: absolute;
            width: 320px;
            height: 320px;
            left: 2px;
            top: 2px;
            border: 6px solid red;
            -webkit-border-radius: 50%;
            -moz-border-radius: 50%;
            border-radius: 50%;
            z-index: 1;
            opacity: 0;
            -webkit-animation: warn 2s ease-out;
            -moz-animation: warn 2s ease-out;
            animation: warn 2s ease-out;
            -webkit-animation-iteration-count: infinite;
            -moz-animation-iteration-count: infinite;
            animation-iteration-count: infinite;
            box-shadow: 1px 1px 30px red;
        }

        .pulse1 {
            position: absolute;
            width: 320px;
            height: 320px;
            left: 2px;
            top: 2px;
            border: 6px solid red;
            -webkit-border-radius: 50%;
            -moz-border-radius: 50%;
            border-radius: 50%;
            z-index: 1;
            opacity: 0;
            -webkit-animation: warn1 2s ease-out;
            -moz-animation: warn1 2s ease-out;
            animation: warn1 2s ease-out;
            -webkit-animation-iteration-count: infinite;
            -moz-animation-iteration-count: infinite;
            animation-iteration-count: infinite;
            box-shadow: 1px 1px 30px red;
        }a{color:blue;text-decoration:none;}
    </style>
</head>

<body><a href="http://hovertree.com/h/bjaf/i309b77d.htm" target="_blank">说明</a>
    <div class="container">
        <div class="dot"></div>
        <div class="pulse"></div>
        <div class="pulse1"></div>
    </div>
</body>
</html>

转自:http://hovertree.com/h/bjaf/i309b77d.htm

参考:
http://hovertree.com/h/bjaf/pr_animation.htm
http://hovertree.com/h/bjaf/xpxgjfap.htm

更多特效:

http://www.cnblogs.com/jihua/p/webfront.html

posted on 2016-12-13 12:24 计划 阅读(...) 评论(...) 编辑 收藏