Toast(msg, duration) {
duration = isNaN(duration) ? 3000 : duration;
var m = document.createElement("div");
m.innerHTML = msg;
m.style.cssText =
"max-width:60%;min-width: 150px;padding:0 14px;height: 40px;color: rgb(255, 255, 255);line-height: 40px;text-align: center;border-radius: 4px;position: fixed;top: 50%;left: 50%;transform: translate(-50%, -50%);z-index: 999999;background: rgba(0, 0, 0,.7);font-size: 16px;";
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);
}
