年度倒计时显示侧栏的教程

先看下展示的效果图：

代码如下：

打开主题自定义，在左侧栏里添加工具 - 简码，将以下代码复制粘贴进去

<div class="progress-wrapper" style="padding: 0">
<div class="progress-info">
<div class="progress-label">
<span id="yearprogress_yearname"></span>
</div>
<div id="yearprogress_text_container" class="progress-percentage">
<span id="yearprogress_progresstext"></span>
<span id="yearprogress_progresstext_full"></span>
</div>
</div>
<div class="progress">
<div id="yearprogress_progressbar" class="progress-bar bg-primary"></div>
</div>
</div>
<script no-pjax="">
function yearprogress_refresh() {
let year = new Date().getFullYear();
$("#yearprogress_yearname").text(year);
let from = new Date(year, 0, 1, 0, 0, 0);
let to = new Date(year, 11, 31, 23, 59, 59);
let now = new Date();
let progress = (((now - from) / (to - from + 1)) * 100).toFixed(7);
let progressshort = (((now - from) / (to - from + 1)) * 100).toFixed(2);
$("#yearprogress_progresstext").text(progressshort + "%");
$("#yearprogress_progresstext_full").text(progress + "%");
$("#yearprogress_progressbar").css("width", progress + "%");
}
yearprogress_refresh();
if (typeof yearProgressIntervalHasSet == "undefined") {
var yearProgressIntervalHasSet = true;
setInterval(function () {
yearprogress_refresh();
}, 500);
}
</script>
<style>
#yearprogress_text_container {
width: 100%;
height: 22px;
overflow: hidden;
user-select: none;
}
#yearprogress_text_container > span {
transition: all 0.3s ease;
display: block;
}
#yearprogress_text_container:hover > span {
transform: translateY(-20px);
}
</style>