<section class="the_body">
  <div class="countdown">
    <h3>距中國雄于地球之日還有</h3>
    <div class="countdown_time">
     <span class="the_days"><i>0</i><i>3</i></span>
     <i class="date_text">天</i>
     <span class="the_hours"><i>0</i><i>7</i></span>
     <i class="date_text">時(shí)</i>
     <span class="the_minutes"><i>4</i><i>7</i></span>
     <i class="date_text">分</i>
     <span class="the_seconds"><i>1</i><i>1</i></span>
     <i class="date_text">秒</i>
    </div>
  </div>
</section>

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.countdown{background:#ffec20;padding: 10px 0;}
.countdown h3{margin:0;padding:5px 0;color:#f53544;text-align:center;font-size:14px;}
.countdown .countdown_time{display:block;width:100%;text-align:center;}
.countdown .countdown_time i{display:inline-block;position:relative;padding:0 3px;font-style:normal;background:#fff;
margin:0 2px;border-radius:3px;box-shadow:0px 1px 1px #ccc;border-bottom:1px solid #cfcfcf;font-weight
:bold;}
.countdown .countdown_time i:after{content:"";width:100%;border:1px solid #cfcfcf;border-width:1px 0 0;position:absolute;
bottom:1px;left:0;}
.countdown .countdown_time i:before{content:"";width:100%;border:1px solid #cfcfcf;border-width:1px 0 0;position:absolute;
bottom:3px;left:0;}
.countdown .countdown_time .date_text{background:transparent;font-weight:bold;box-shadow:none;
border-bottom:none;text-decoration:none;padding: 0;}
.countdown .countdown_time .date_text:after{content:"";border:none;}
.countdown .countdown_time .date_text:before{content:"";border:none;}

<script>
function remaintime() {
 var date = new Date("Jan 1,2015 00:00:00");//設(shè)置倒計(jì)時(shí)結(jié)束時(shí)間
 var nowdate = new Date();//獲取當(dāng)前日期
 var remaintime = date.getTime() - nowdate.getTime();//獲取現(xiàn)在到倒計(jì)時(shí)結(jié)束時(shí)間的毫秒數(shù)
 var remainday = Math.floor(remaintime / (1000 * 60 * 60 * 24));//計(jì)算求得剩余天數(shù)
 var remainhour = Math.floor((remaintime - remainday * 1000 * 60* 60 * 24)/ (1000 * 60 * 60));//計(jì)算求得剩余小時(shí)數(shù)
 var remainminute = Math.floor((remaintime - remainday * 1000 * 60* 60 * 24 - remainhour * 1000 * 60 * 60)/ (1000 * 60));//計(jì)算求得剩余分鐘數(shù)
 var remainsecond = Math.floor((remaintime - remainday * 1000 * 60 * 60 * 24- remainhour * 1000 * 60 * 60 - remainminute *
    1000 * 60) / (1000));//計(jì)算求得剩余秒數(shù)
 //當(dāng)剩余天數(shù)小于10時(shí)，就在其前加一個(gè)0，以下剩余小時(shí)數(shù)、分鐘數(shù)與秒數(shù)與此相同
 if (remainday < 10) {
  remainday = "0" + remainday;
 }else{remainday+="";
 //當(dāng)剩余天數(shù)大于10時(shí)，剩余天數(shù)為數(shù)值，這是需要將該值轉(zhuǎn)換為字符串，以下的剩余小時(shí)數(shù)、分鐘數(shù)與秒數(shù)與此相同
}
 if (remainhour < 10) {
  remainhour = "0" + remainhour;
 }else{remainhour+="";}
 if (remainminute < 10) {
  remainminute = "0" + remainminute;
 }else{remainminute+="";}
 if (remainsecond < 10) {
  remainsecond = "0" + remainsecond;
 }else{remainsecond+="";}
 $(".the_days i:first-child").html(remainday.substr(0, 1));
 $(".the_days i:last-child").html(remainday.substr(1, 2));
 $(".the_hours i:first-child").html(remainhour.substr(0, 1));
 $(".the_hours i:last-child").html(remainhour.substr(1, 2));
 $(".the_minutes i:first-child").html(remainminute.substr(0, 1));
 $(".the_minutes i:last-child").html(remainminute.substr(1, 2));
 $(".the_seconds i:first-child").html(remainsecond.substr(0, 1));
 $(".the_seconds i:last-child").html(remainsecond.substr(1, 2));
 setTimeout("remaintime()",1000);//設(shè)置1秒后調(diào)用remaintime函數(shù)
}
remaintime();
setTimeout(function(){$(".countdown").hide();},10000);//在首頁設(shè)置的彈窗效果，在分頁這段代碼可以不設(shè)置
</script>