WordPress网站添加新春倒计时代码

<div class="card" style="background: url(https://pic.liesys.com/i/2022/12/21/63a2d91b57c8f.png) no-repeat; background-size: cover;"><br>
<center>
<b><h4><p><span style="color: #ffffff;">2023年新春倒计时</span></p></h4></b>
<b><h5><p><span style="color: #ffffff;">谎伴导航</span></p></h5></b>
</center>
<div class="gn_box">
<center>
<div id="CountMsg" class="HotDate text-light">
<span style="color: #ffffff;"><span id="t_d">10天</span>
<span id="t_h">10时</span>
<span id="t_m">10分</span>
<span id="t_s">10秒</span></span>
</div><br>
</center><br>
<script type="text/javascript"> function getRTime() {
var EndTime = new Date('2023/01/21 00:00:00');     //可以修改时间
var NowTime = new Date();
var t = EndTime.getTime() - NowTime.getTime();
var d = Math.floor(t / 1000 / 60 / 60 / 24);
var h = Math.floor(t / 1000 / 60 / 60 % 24);
var m = Math.floor(t / 1000 / 60 % 60);
var s = Math.floor(t / 1000 % 60);
document.getElementById("t_d").innerHTML = d + " 天";
document.getElementById("t_h").innerHTML = h + " 时";
document.getElementById("t_m").innerHTML = m + " 分";
document.getElementById("t_s").innerHTML = s + " 秒";
}
setInterval(getRTime, 1000);
</script>
</div>
</div><style>
.copyright {
margin-top: 10px;
padding: 10px;
background: #5f9ea0;
border-radius: 5px;
color : #f0ffff;
}
.copyright .copyright-title {
padding: 5px;
text-align: center;
}
.copyright .copyright-title h3 {
font-size: 18px;
}
.copyright .copyright-text {
font-size: 15px;
line-height: 25px;
}
.copyright .copyright-url {
margin: 5px 0;
}
</style>