桌面端实现点击增加背景颜色，移动端事项触摸增加背景颜色，但是鼠标和手指离开后背景颜色需要复原

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        p:active {
            background-color: red;
        } 
    </style>
</head>
<body>
    <p >p:active</p>
    <script>
        document.querySelector('p').addEventListener('touchstart', function () { 
            this.style.backgroundColor = 'red'
         });
        document.querySelector('p').addEventListener('touchend', function () { 
            this.style.backgroundColor = 'transparent'
         });
         document.querySelector('p').addEventListener('mousedown', function () { 
            this.style.backgroundColor = 'red'
         });
         document.querySelector('p').addEventListener('mouseup', function () { 
            this.style.backgroundColor = 'transparent'
         });
    </script>
</body>
</html>
posted @ 2020-02-27 16:42  wangdong93  阅读(243)  评论(0)    收藏  举报