button 按钮点击波动效果

ゞ浴缸里的玫瑰 2022-05-18 00:56 335阅读 0赞

<html>
    <head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
    <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
    <title></title>
    <style>
    .center{text-align:center}
    h1.mt40{margin-top:40px}
    .btn {background:#4285f4;position:relative;width:13em;height:3em;margin:2em;border:none;outline:none;letter-spacing:.2em;font-weight:bold;background:#999;cursor:pointer;overflow:hidden;user-select:none;border-radius:2px;color:#fff;}
    
    .ripple {position:absolute;background:rgba(0,0,0,.15);border-radius:100%;transform:scale(0);pointer-events:none;}
    .ripple.show {animation:ripple .75s ease-out;}
    @keyframes ripple {to {transform:scale(2);opacity:0;}}
    </style>
    </head>
    <body>
    <h1 class="center mt40"></h1>
    <div class="main center">
        <button class="btn">BUTTON</button>
    </div>
    <script>
    var addRippleEffect = function (e) {
        var target = e.target;
        if (target.className.toLowerCase() !== 'btn') return false;
        var rect = target.getBoundingClientRect();
        var ripple = target.querySelector('.ripple');
        if (!ripple) {
            ripple = document.createElement('span');
            ripple.className = 'ripple';
            ripple.style.height = ripple.style.width = Math.max(rect.width, rect.height) + 'px';
            target.appendChild(ripple);
        }
        ripple.classList.remove('show');
        var top = e.pageY - rect.top - ripple.offsetHeight / 2 - document.body.scrollTop;
        var left = e.pageX - rect.left - ripple.offsetWidth / 2 - document.body.scrollLeft;
        ripple.style.top = top + 'px';
        ripple.style.left = left + 'px';
        ripple.classList.add('show');
        return false;
    }
    document.addEventListener('click', addRippleEffect, false);
    </script>
    
        
        <script src="/js/other.js"></script>
        <link href="/css/other.css" rel="stylesheet" />
        <script src="http://code.jquery.com/jquery-2.1.1.min.js"></script> 
        <script src="/js/pop_250_250.js"></script>
    
    </body>
    </html>

**复制粘贴即可。**

**此效果为截图：**

![20201027174359724.png][]

[20201027174359724.png]: /images/20220518/f37dbbf53be74079b7e82ea40bf4e2b3.png