CSS3在我们网页设计中是最关键的一环，为什么这么说呢？我们在浏览别人的网站时，经常会看到特别好看的动画效果，比如一个按钮啊，一个图片啊，每次看到都能够让人有种赏心悦目的感觉，这就使网站更具有吸引力和互动性。接下来我就用css3的一些属性来完成点击按钮气泡动画特效。

先看gif效果图:

是不是很酷炫，哈哈，别着急，干货马上献上。

HTML代码：

Clickme!

关键CSS代码：

body {

font-size: 16px;

font-family: 'Helvetica', 'Arial', sans-serif;

text-align: center;

background-color: #f8faff;

}

.bubbly-button {

font-family: 'Helvetica', 'Arial', sans-serif;

display: inline-block;

font-size: 1em;

padding: 1em 2em;

margin-top: 100px;

margin-bottom: 60px;

-webkit-appearance: none;

appearance: none;

background-color: #ff0081;

color: #fff;

border-radius: 4px;

border: none;

cursor: pointer;

position: relative;

transition: transform ease-in 0.1s, box-shadow ease-in 0.25s;

box-shadow: 0 2px 25px rgba(255, 0, 130, 0.5);

}

.bubbly-button:focus {

outline: 0;

}

.bubbly-button:before, .bubbly-button:after {

position: absolute;

content: '';

display: block;

width: 140%;

height: 100%;

left: -20%;

z-index: -1000;

transition: all ease-in-out 0.5s;

background-repeat: no-repeat;

}

.bubbly-button:before {

display: none;

top: -75%;

background-image: radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, transparent 20%, #ff0081 20%, transparent 30%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, transparent 10%, #ff0081 15%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%);

background-size: 10% 10%, 20% 20%, 15% 15%, 20% 20%, 18% 18%, 10% 10%, 15% 15%, 10% 10%, 18% 18%;

}

.bubbly-button:after {

display: none;

bottom: -75%;

background-image: radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, transparent 10%, #ff0081 15%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%), radial-gradient(circle, #ff0081 20%, transparent 20%);

background-size: 15% 15%, 20% 20%, 18% 18%, 20% 20%, 15% 15%, 10% 10%, 20% 20%;

}

.bubbly-button:active {

transform: scale(0.9);

background-color: #e60074;

box-shadow: 0 2px 25px rgba(255, 0, 130, 0.2);

}

.bubbly-button.animate:before {

display: block;

animation: topBubbles ease-in-out 0.75s forwards;

}

.bubbly-button.animate:after {

display: block;

animation: bottomBubbles ease-in-out 0.75s forwards;

}

@keyframes topBubbles {

0% {

background-position: 5% 90%, 10% 90%, 10% 90%, 15% 90%, 25% 90%, 25% 90%, 40% 90%, 55% 90%, 70% 90%;

}

50% {

background-position: 0% 80%, 0% 20%, 10% 40%, 20% 0%, 30% 30%, 22% 50%, 50% 50%, 65% 20%, 90% 30%;

}

100% {

background-position: 0% 70%, 0% 10%, 10% 30%, 20% -10%, 30% 20%, 22% 40%, 50% 40%, 65% 10%, 90% 20%;

background-size: 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%;

}

}

@keyframes bottomBubbles {

0% {

background-position: 10% -10%, 30% 10%, 55% -10%, 70% -10%, 85% -10%, 70% -10%, 70% 0%;

}

50% {

background-position: 0% 80%, 20% 80%, 45% 60%, 60% 100%, 75% 70%, 95% 60%, 105% 0%;

}

100% {

background-position: 0% 90%, 20% 90%, 45% 70%, 60% 110%, 75% 80%, 95% 70%, 110% 10%;

background-size: 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%, 0% 0%;

}

}

当然需要一点javascript代码：

var animateButton = function(e) {

e.preventDefault;

//reset animation

e.target.classList.remove('animate');

e.target.classList.add('animate');

setTimeout(function(){

e.target.classList.remove('animate');

},700);

};

var classname = document.getElementsByClassName("bubbly-button");

for (var i = 0; i < classname.length; i++) {

classname[i].addEventListener('click', animateButton, false);

}

以上代码实现不难，关键都是在CSS3这一块儿，所以看不懂一些属性的童鞋下去好好补补CSS3这一块儿的知识，相信你也能玩转CSS3动画特效，有了它，我们的网页无疑是锦上添花，画龙点睛呐！！哈哈

结束语：

代码这种东西不仅要学还要动手去敲的，时间长了就会显得生疏，好了，大家可以下去试试了。