第一步-先要放在什么位置,我的放在独立页面,加入以下代码:

<!-- 时间倒计时代码 -->
    <div class="sidebar-box classListBox">
    <div class="aside aside-count">
        <div class="p-3"><span style="font-size: 1.2em; color: orange;"><i class="fas fa-hourglass-half"></i></span> 人生倒计时</div>
        <div class="content">
            <div class="item" id="dayProgress">
                <div class="title">今日已经过去<span></span>小时</div>
                <div class="progress">
                    <div class="progress-bar">
                        <div class="progress-inner progress-inner-1"></div>
                    </div>
                    <div class="progress-percentage"></div>
                </div>
            </div>
            <div class="item" id="weekProgress">
                <div class="title">这周已经过去<span></span>天</div>
                <div class="progress">
                    <div class="progress-bar">
                        <div class="progress-inner progress-inner-2"></div>
                    </div>
                    <div class="progress-percentage"></div>
                </div>
            </div>
            <div class="item" id="monthProgress">
                <div class="title">本月已经过去<span></span>天</div>
                <div class="progress">
                    <div class="progress-bar">
                        <div class="progress-inner progress-inner-3"></div>
                    </div>
                    <div class="progress-percentage"></div>
                </div>
            </div>
            <div class="item" id="yearProgress">
                <div class="title">今年已经过去<span></span>个月</div>
                <div class="progress">
                    <div class="progress-bar">
                        <div class="progress-inner progress-inner-4"></div>
                    </div>
                    <div class="progress-percentage"></div>
                </div>
            </div>
        </div>
    </div>
</div>
    <!-- 时间倒计时代码 -->