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HTML

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <div class="main-wrapper">
  <div class="content">
    <div class="blockHolder hourP1"></div>
    <div class="blockHolder hourP0"></div>
    <div class="blockHolder colon"></div>
    <div class="blockHolder minP1"></div>
    <div class="blockHolder minP0"></div>
    <div class="blockHolder colon"></div>
    <div class="blockHolder secP1"></div>
    <div class="blockHolder secP0"></div>
    <div class="blockHolder spacer"></div>
    <div class="blockHolder letterAP"></div>
  </div>
  <a class="full" href="javascript:void(0)">Fullscreen</a>
  <div class="toggle">
    <input name="toggle" id="toggle" type="checkbox" />
    <label for="toggle">Toggle 24hr</label>
  </div>
</div>
!

CSS 

              
                $bg : #111;
$dark : #161616;
$active : #f80;

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
  background:$bg;
  color:$active;
}

.main-wrapper {
  height: 100%;
  position: relative;
  margin: 0 10%;
  display: flex;
  flex-direction: column;
  
  .content::after {
    clear:left;
    content:"";
    display:block;
  }
}

.blockHolder {
  transition: .2s all;
  display:inline-block;
  border-radius:1%;
  overflow:hidden;
  width:11.5%;
  margin:50px 0.5%;
  float:left;
  >div {
    width:18%;
    padding-top:18%;
    margin:1%;
    display:inline-block;
    float:left;
    background:$dark;
    transition:.6s background;
    border-radius:20%;
  }
}

.active {
  animation: flip .4s 1 cubic-bezier(0, 0.78, 1, 0.13);
  -webkit-animation: flip .4s 1 cubic-bezier(0, 0.78, 1, 0.13);
  background:$active;
}

.num0 .cell0,
.num1 .cell1,
.num2 .cell2,
.num3 .cell3,
.num4 .cell4,
.num5 .cell5,
.num6 .cell6,
.num7 .cell7,
.num8 .cell8,
.num9 .cell9,
.colon.on .cellcolon,
.letterAP.AM .cellA,
.letterAP.PM .cellP {
  @extend .active;
}

.full {
  color: #333;
  font-family: Arial, Helvetica, sans-serif;
  position: absolute;
  bottom: 2.5em;
  left: 0;
  right: 0;
  text-align: center;
}

.toggle {
  font-size:.8em;
  width: 100%;
  position:absolute;
  left:0;
  bottom:1em;
  text-align:center;
  font-family:Verdana,Arial,Sans;
  input {
    display:none;
  }
  label {
    transition: .5s all;
    opacity:.1;
    cursor:pointer;
    background:$active;
    color:$dark;
    padding:5px;
    border-radius:5px;
    font-weight:bold;
    &::before {
      content:"\2610";
      margin-right:.5em;
    }
    &:hover {
      opacity:1;
    }
  }
  input:checked+label::before{
    content:"\2611";
  }
}

.hourP1.num0 .cell0 {
  background:$dark;
  animation:none;
}

.twelvehour {
  .blockHolder {
    width: 9%;
  }
}

.letterAP, .spacer {
  width:0;
  margin-left:0;
  margin-right:0%;
  opacity:0;
  
  .twelvehour & {
    width: 9%;
    margin-left:.5%;
    margin-right:.5%;
    opacity:1;
  }
}

.colon>div {
  transition:1s all;
}

@-webkit-keyframes flip {
    0%      {background:$dark; width:18%; margin:1%;}
    49%     {background:$dark;}
    50%     {background:$active; width:0%;  margin:1% 10%;}
    100%    {background:$active; width:18%; margin:1%;}
} 
@keyframes flip {
    0%      {background:$dark; width:18%; margin:1%;}
    49%     {background:$dark;}
    50%     {background:$active; width:0%;  margin:1% 10%;}
    100%    {background:$active; width:18%; margin:1%;}
}
!

JS 

              
                /* Append required divs to the dom */
window.xnum = 5; //width
window.ynum = 8; //height
$('.content').children().each(function() {
  var str = '';
  for(i=0;i<window.xnum*window.ynum;i++) {
    str+= '<div/>';
  }
  $(this).append(str);
});

/* Matrix of digits for LCD display */
var numberGroup = {
  0:[1,2,3,5,9,10,14,15,19,20,24,25,29,30,34,36,37,38],
  1:[2,6,7,12,17,22,27,32,36,37,38],
  2:[1,2,3,5,9,14,18,22,26,30,35,36,37,38,39],
  3:[1,2,3,5,9,14,17,18,24,29,30,34,36,37,38],
  4:[3,7,8,11,13,15,18,20,21,22,23,24,28,33,38],
  5:[0,1,2,3,4,5,10,15,16,17,18,24,29,30,34,36,37,38],
  6:[2,3,6,10,15,16,17,18,20,24,25,29,30,34,36,37,38],
  7:[0,1,2,3,4,9,13,18,22,27,31,36],
  8:[1,2,3,5,9,10,14,16,17,18,20,24,25,29,30,34,36,37,38],
  9:[1,2,3,5,9,10,14,15,19,21,22,23,24,29,33,36,37],
  "colon":[12,27],
  "A":[1,2,3,5,9,10,14,15,16,17,18,19,20,24,25,29,30,34,35,39],
  "P":[0,1,2,3,5,9,10,14,15,16,17,18,20,25,30,35,40]
};

/* Apply classes */
for (var key in numberGroup) {
  for (var i=0; i<numberGroup[key].length; i++) {
    $('.blockHolder,.blockSeparator').find('>div:eq('+(numberGroup[key][i])+')').addClass('cell'+key);
  }
}

/* function to run once a second */
window.setTime = function() {
  var d = new Date(),
      time = {
        'hour': $('#toggle').is(':checked') ? d.getHours() : ((d.getHours()-1)%12)+1, //The minus before hand, then plus afterward is so that "12" in the hour shows up as "12" and not "0"
        'min':d.getMinutes(),
        'sec':d.getSeconds()
      },
      PM = Math.floor(d.getHours()/12);
  
  if ($('#toggle').is(':checked')) {
    $('.content').removeClass('twelvehour');
  } else {
    $('.content').addClass('twelvehour');
    $('.letterAP').removeClass(PM?'AM':'PM').addClass(PM?'PM':'AM');
  }
  
  if (time['sec'] % 6) {
    $('.colon').addClass("on");
  } else {
    $('.colon').removeClass("on");
  }
    
  for (var key in time) {
    var p1 = 'num'+Math.floor(time[key]/10);
    var p0 = 'num'+(time[key]%10);

    var str = 'num0 num1 num2 num3 num4 num5 num6 num7 num8 num9';

    $('.'+key+'P1').removeClass(str.replace(p1,'')).addClass(p1).attr('data-num',p1);
    $('.'+key+'P0').removeClass(str.replace(p0,'')).addClass(p0).attr('data-num',p0);
  }
}

window.setTime();

$('label').click(function() {
  window.setTime();
});

setInterval(function(){
  window.setTime();
},1000);

$('.full').click(() => {
  toggleFullScreen();
});

function toggleFullScreen() {
  if ((document.fullScreenElement && document.fullScreenElement !== null) ||    
   (!document.mozFullScreen && !document.webkitIsFullScreen)) {
    if (document.documentElement.requestFullScreen) {  
      document.documentElement.requestFullScreen();  
    } else if (document.documentElement.mozRequestFullScreen) {  
      document.documentElement.mozRequestFullScreen();  
    } else if (document.documentElement.webkitRequestFullScreen) {  
      document.documentElement.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT);  
    }  
  } else {  
    if (document.cancelFullScreen) {  
      document.cancelFullScreen();  
    } else if (document.mozCancelFullScreen) {  
      document.mozCancelFullScreen();  
    } else if (document.webkitCancelFullScreen) {  
      document.webkitCancelFullScreen();  
    }  
  }  
}
!
999px

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