Styled JavaScript Countdown Clock

index.html

<h1>Poll Countdown</h1>
<h2>#AE17 Northern Ireland Assembly Elections </h2>
<div id="clockdiv">
  <div>
    <span class="hours"></span>
    <div class="smalltext">Hours</div>
  </div>
  <div>
    <span class="minutes"></span>
    <div class="smalltext">Minutes</div>
  </div>
  <div>
    <span class="seconds"></span>
    <div class="smalltext">Seconds</div>
  </div>
</div>
<h3><a href="http://electionsni.org">ElectionsNI.org </a></h3>
<p>Polling stations close at 10pm on 2 March<br/>Find your <a href="http://www.eoni.org.uk/Home">polling station</a></p>

script.js

function getTimeRemaining(endtime) {
  var t = Date.parse(endtime) - Date.parse(new Date());
  var seconds = Math.floor((t / 1000) % 60);
  var minutes = Math.floor((t / 1000 / 60) % 60);
  var hours = Math.floor((t / (1000 * 60 * 60)) % 24);
  var days = Math.floor(t / (1000 * 60 * 60 * 24));
  return {
    'total': t,
    'days': days,
    'hours': hours,
    'minutes': minutes,
    'seconds': seconds
  };
}

function initializeClock(id, endtime) {
  var clock = document.getElementById(id);
  var daysSpan = clock.querySelector('.days');
  var hoursSpan = clock.querySelector('.hours');
  var minutesSpan = clock.querySelector('.minutes');
  var secondsSpan = clock.querySelector('.seconds');

  function updateClock() {
    var t = getTimeRemaining(endtime);
    hoursSpan.innerHTML = ('0' + t.hours).slice(-2);
    minutesSpan.innerHTML = ('0' + t.minutes).slice(-2);
    secondsSpan.innerHTML = ('0' + t.seconds).slice(-2);

    if (t.total <= 0) {
      clearInterval(timeinterval);
    }
  }

  updateClock();
  var timeinterval = setInterval(updateClock, 1000);
}

var deadline = new Date(Date.parse('March 2 2017 22:00:00 GMT+0000'));
initializeClock('clockdiv', deadline);

style.css

body{
	text-align: center;
	background: #00ECB9;
  font-family: sans-serif;
  font-weight: 100;
}

a:link{
  color: white;
}

a, a:link a:visited, a:active {
  color: #ffffff;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1{
  color: #26734b;
  font-weight: 100;
  font-size: 40px;
  margin: 40px 0px 20px;
}

p, h2{
  color: #26734b;
}

#clockdiv{
	font-family: sans-serif;
	color: #fff;
	display: inline-block;
	font-weight: 100;
	text-align: center;
	font-size: 30px;
}

#clockdiv > div{
	padding: 10px;
	border-radius: 3px;
	background: #00BF96;
	display: inline-block;
}

#clockdiv div > span{
	padding: 15px;
	border-radius: 3px;
	background: #00816A;
	display: inline-block;
}

.smalltext{
	padding-top: 5px;
	font-size: 16px;
}

styled-javascript-countdown-clock.markdown

Styled JavaScript Countdown Clock

Code from the article: http://www.sitepoint.com/build-javascript-clock-no-dependencies

Forked from Yaphi's Pen Styled JavaScript Countdown Clock.

A Pen by Bob Harper on CodePen.

License.