基于HTML实现2023年倒计时

代码实现

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>2023倒计时</title>
<!-- <link rel="stylesheet" href="style.css"> -->
<style>/* 公共基础样式 */#clockdiv{width: 300px;height: 300px;background-color: #14274F;color: #fff;display: flex;justify-content: center;align-items: center;margin: 50px;}/* 凸起效果样式 */#demo1 {border-left: 1px solid #33B8EC;border-top: 1px solid #33B8EC;border-right: 3px solid #000;border-bottom: 3px solid #000;color: #ffffff;}</style>
</head>
<body><div id="clockdiv"><div id="demo1"><div><div >距离2023年元旦还有</div></div><div><span class="days">0</span><div class="smalltext">天</div></div><div><span class="hours">0</span><div class="smalltext">小时</div></div><div><span class="minutes">0</span><div class="smalltext">分</div></div><div><span class="seconds">0</span><div class="smalltext">秒</div></div></div></div><script>
// 设定结束时间
var deadline = new Date("2023-01-01 00:00:00").getTime();// 每秒更新倒计时
var x = setInterval(function() {// 获取当前时间var now = new Date().getTime();// 计算时间差var t = deadline - now;// 计算天、小时、分钟、秒var days = Math.floor(t / (1000 * 60 * 60 * 24));var hours = Math.floor((t % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));var minutes = Math.floor((t % (1000 * 60 * 60)) / (1000 * 60));var seconds = Math.floor((t % (1000 * 60)) / 1000);// 显示倒计时document.getElementsByClassName("days")[0].innerHTML = days;document.getElementsByClassName("hours")[0].innerHTML = hours;document.getElementsByClassName("minutes")[0].innerHTML = minutes;document.getElementsByClassName("seconds")[0].innerHTML = seconds;// 如果结束时间到了，停止倒计时if (t < 0) {clearInterval(x);document.getElementById("clockdiv").innerHTML = "倒计时结束";}
}, 1000);
</script></body>
</html>