js 实现 Android 的 Toast 效果

JavaScript 代码如下：

< script >
    var toast = function (msg, duration) {
        duration = isNaN(duration) ? 3000 : duration;
        var m = document.createElement('div');
        m.innerHTML = msg;
        m.style.cssText = " 60%;min- 150px;opacity: 0.7;height: 30px;color: rgb(255, 255, 255);line-height: 30px;text-align: center;border-radius: 5px;position: fixed;top: 40%;left: 20%;z-index: 999999;background: rgb(0, 0, 0);font-size: 12px;";
        document.body.appendChild(m);
        setTimeout(function () {
            var d = 0.5;
            m.style.webkitTransition = '-webkit-transform ' + d + 's ease-in, opacity ' + d + 's ease-in';
            m.style.opacity = '0';
            setTimeout(function () {
                document.body.removeChild(m)
            }, d * 1000);
        }, duration);
    } 
</script>

文章摘自： https://blog.csdn.net/zhaodecang/article/details/78029831