<h2>动画按钮 - 涟漪效应</h2>

​

<button class="button">点我</button>

.button {

    position: relative;

    background-color: #4CAF50;

    border: none;

    font-size: 28px;

    color: #FFFFFF;

    padding: 20px;

    width: 200px;

    text-align: center;

    -webkit-transition-duration: 0.4s; /* Safari */

    transition-duration: 0.4s;

    text-decoration: none;

    overflow: hidden;

    cursor: pointer;

}

​

.button:after {

    content: "";

    background: #90EE90;

    display: block;

    position: absolute;

    padding-top: 300%;

    padding-left: 350%;

    margin-left: -20px!important;

    margin-top: -120%;

    opacity: 0;

    transition: all 0.8s

}

​

.button:active:after {

    padding: 0;

    margin: 0;

    opacity: 1;

    transition: 0s

}