标签：style blog http color os io ar div cti
这款CSS3动画按钮非常的有创意，鼠标在滑过按钮时并不像其他按钮那样仅仅改变按钮的背景颜色，而是出现很酷的冒泡动画。这么惊艳的CSS3动画按钮，这篇文章主要将按钮实现的过程和代码分享给大家，希望能给在学习CSS3的同学带来实质性的帮助。可以下来看看在线演示效果：
接下来我们来讲解一下这款CSS3气泡动画的按钮实现过程，主要由HTML代码和CSS代码组成。
<div id="buttonContainer"> <a href="#">Big Button</a> <a href="#">Big Button</a> <a href="#">Big Button</a> <a href="#">Big Button</a> <a href="#">Medium Button</a> <a href="#">Medium Button</a> <a href="#">Medium Button</a> <a href="#">Medium Button</a> <a href="#">Small Button</a> <a href="#">Small Button</a> <a href="#">Rounded</a> <a href="#">Small Button</a> <a href="#">Small Button</a> <a href="#">Rounded</a> </div>
HTML代码相对比较简单，即用一个个a链接构造按钮，当然演示中的效果还需要CSS的大力渲染才行。
接下来的重点是CSS代码，首先我们来为每一个button渲染基础的样式，这些样式都是每一个按钮所共有的：
.button{ font:15px Calibri, Arial, sans-serif; /* A semi-transparent text shadow */ text-shadow:1px 1px 0 rgba(255,255,255,0.4); /* Overriding the default underline styling of the links */ text-decoration:none !important; white-space:nowrap; display:inline-block; vertical-align:baseline; position:relative; cursor:pointer; padding:10px 20px; background-repeat:no-repeat; /* The following two rules are fallbacks, in case the browser does not support multiple backgrounds. */ background-position:bottom left; background-image:url(‘button_bg.png‘); /* Multiple backgrounds version. The background images are defined individually in color classes */ background-position:bottom left, top right, 0 0, 0 0; background-clip:border-box; /* Applying a default border raidus of 8px */ -moz-border-radius:8px; -webkit-border-radius:8px; border-radius:8px; /* A 1px highlight inside of the button */ -moz-box-shadow:0 0 1px #fff inset; -webkit-box-shadow:0 0 1px #fff inset; box-shadow:0 0 1px #fff inset; /* Animating the background positions with CSS3 */ /* Currently works only in Safari/Chrome */ -webkit-transition:background-position 1s; -moz-transition:background-position 1s; transition:background-position 1s; } .button:hover{ /* The first rule is a fallback, in case the browser does not support multiple backgrounds */ background-position:top left; background-position:top left, bottom right, 0 0, 0 0; } .button:active{ /* Moving the button 1px to the bottom when clicked */ bottom:-1px; }
同样也定义了按钮在鼠标滑过和被激活时的样式。
最后是气泡动画特效，我们拿其中一个按钮为例，代码如下：
.blue.button{ color:#0f4b6d !important; border:1px solid #84acc3 !important; /* A fallback background color */ background-color: #48b5f2; /* Specifying a version with gradients according to */ background-image: url(‘button_bg.png‘), url(‘button_bg.png‘), -moz-radial-gradient( center bottom, circle, rgba(89,208,244,1) 0,rgba(89,208,244,0) 100px), -moz-linear-gradient(#4fbbf7, #3faeeb); background-image: url(‘button_bg.png‘), url(‘button_bg.png‘), -webkit-gradient( radial, 50% 100%, 0, 50% 100%, 100, from(rgba(89,208,244,1)), to(rgba(89,208,244,0))), -webkit-gradient(linear, 0% 0%, 0% 100%, from(#4fbbf7), to(#3faeeb)); } .blue.button:hover{ background-color:#63c7fe; background-image: url(‘button_bg.png‘), url(‘button_bg.png‘), -moz-radial-gradient( center bottom, circle, rgba(109,217,250,1) 0,rgba(109,217,250,0) 100px), -moz-linear-gradient(#63c7fe, #58bef7); background-image: url(‘button_bg.png‘), url(‘button_bg.png‘), -webkit-gradient( radial, 50% 100%, 0, 50% 100%, 100, from(rgba(109,217,250,1)), to(rgba(109,217,250,0))), -webkit-gradient(linear, 0% 0%, 0% 100%, from(#63c7fe), to(#58bef7)); }
从代码中我们可以看出，当鼠标滑过按钮时，按钮中的气泡背景图片将实现渐变的动画效果，并加以一定的透明效果，这样便出现了气泡上升的动画特效。所有的代码就是这样，你可以下载源代码来研究。
标签：style blog http color os io ar div cti
原文地址：http://www.cnblogs.com/html5tricks/p/3962138.html
