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              .clockface
  .hand.second.animate
  .hand.minute.animate
  .hand.hour.animate
  -var n = 1
  while n <= 12
    .label(class='label-' + n)
      .label_number= n++
      
.digital
  .hours.division
    .counter
      .digits.animate.hours_tens
        -var i = 0
        while i <= 2
          .digit= i++
        .digit 0
    .counter
      .digits.animate.hours_units
        -i = 0
        while i <= 9
          .digit= i++
        .digit 0
  .minutes.division
    .counter
      .digits.animate.minutes_tens
        -i = 0
        while i <= 5
          .digit= i++
        .digit 0
    .counter
      .digits.animate.minutes_units
        -i = 0
        while i <= 9
          .digit= i++
        .digit 0
  .seconds.division
    .counter
      .digits.animate.seconds_tens
        -i = 0
        while i <= 5
          .digit= i++
        .digit 0
    .counter
      .digits.animate.seconds_units
        -i = 0
        while i <= 9
          .digit= i++
        .digit 0
            
          
!
            
              // ANALOGUE CLOCK //

@keyframes hand
  25%
    transform: rotate(90deg)
  50%
    transform: rotate(180deg)
  75%
    transform: rotate(270deg)
  to
    transform: rotate(360deg)

.clockface
  border: 2px solid black
  border-radius: 50%
  height: 20em
  margin: 0 auto
  position: relative
  width: 20em
  
  &:after /* Centre dot */
    background: black
    border-radius: 50%
    content: ''
    height: 1em
    left: 9.5em
    position: absolute
    top: 9.5em
    width: 1em
  
.hand
  animation: hand infinite steps(15)
  position: absolute
  transform-origin: 50% 100%
  
.second
  background: red
  height: 9em
  left: calc(50% - 1px)
  top: 1em
  width: 2px
  animation-duration: 60s

.minute
  background: black
  border-radius: 3px
  height: 7.5em
  left: calc(50% - 3px)
  top: 2.5em
  width: 6px
  animation-duration: 3600s // 60 minutes
  
.hour
  background: black
  height: 4.5rem
  left: calc(50% - 5px)
  top: 5.5rem
  width: 10px
  animation-duration: 43200s // 12 hours
  &:after /* triangle pointer */
    border: solid transparent
    border-bottom-color: black
    border-width: 10px 5px
    content: ''
    position: absolute
    top: -20px
  
.label
  font-size: 2em
  position: absolute
  text-align: center
  transform-origin: 50% 9.5rem
  top: .5rem
  width: 100%
  @for $i from 1 through 11
    &-#{$i}
      transform: rotate($i * 30deg)
      .label_number
        transform: rotate(-$i * 30deg)

// DIGITAL CLOCK //
$digitHeight: 1.5

.digital
  margin: 2em auto
  text-align: center
      
.division
  display: inline-block
  font-family: monospace
  font-size: 3rem
  font-weight: bold
  line-height: $digitHeight
  
.hours, .minutes
  &:after
    content: ':'
    display: inline-block
    margin: 0 .45ex 0 -.45ex

.counter
  display: inline-block
  height: $digitHeight * 1em
  margin: 0 -.45ch
  overflow: hidden
  vertical-align: bottom
  width: 1em
  
.digit
  background: linear-gradient(#666, #000)
  color: white
  height: $digitHeight * 1em
  text-align: center
  width: 100%

$flipDuration: .2 // time taken for flip animation, in seconds

@mixin digitalAnimation($animationName, $unitDuration, $nbSteps)
  @keyframes #{$animationName}
    @for $i from 0 to $nbSteps
      #{$i * 100/$nbSteps}%, #{($i+1) * 100/$nbSteps - $flipDuration * 100/($unitDuration * $nbSteps)}%
        transform: translateY(#{$i * -$digitHeight}em)
    99.99999%
      transform: translateY($digitHeight * $nbSteps * -1em)

  .#{$animationName}
    animation: $animationName ($unitDuration * $nbSteps * 1s) infinite

@include digitalAnimation(seconds_units, 1, 10)
@include digitalAnimation(seconds_tens, 10, 6)
@include digitalAnimation(minutes_units, 60, 10)
@include digitalAnimation(minutes_tens, 600, 6)

@keyframes hours_units
  @for $i from 1 through 9
    #{$i * 100/24}%, #{($i+1) * 100/24 - $flipDuration/864}%,
    #{($i + 10) * 100/24}%, #{($i + 11) * 100/24 - $flipDuration/864}%
      transform: translateY(#{$i * $digitHeight * -1em})
  99.99999%, #{(1000/24 - 0.00001)}%, #{(2000/24 - 0.00001)}%
    transform: translateY($digitHeight * -10em)
  @for $i from 1 through 3
    #{($i+20) * 100/24}%, #{($i+21) * 100/24 - $flipDuration/864}%
      transform: translateY(#{$i * $digitHeight * -1em})
  from, to, #{(1000/24)}%, #{(2000/24)}%, #{100/24 - $flipDuration/864}%, #{1100/24 - $flipDuration/864}%, #{2100/24 - $flipDuration/864}%
    transform: none

@keyframes hours_tens
  from, to, #{1000/24 - $flipDuration/864}%
    transform: none
  #{(1000/24)}%, #{2000/24 - $flipDuration/864}%
    transform: translateY($digitHeight * -1em)
  #{(2000/24)}%, #{100 - $flipDuration/864}%
    transform: translateY($digitHeight * -2em)
  99.99999%
    transform: translateY($digitHeight * -3em)
  
.hours_units
  animation: hours_units 86400s infinite
.hours_tens
  animation: hours_tens 86400s infinite
            
          
!
            
              (function() {
  var now = new Date();
  var delay =
      -now.getMilliseconds() -
      1000 * now.getSeconds() - 
      60000 * now.getMinutes() -
      3600000 * now.getHours();
  
  var elementsToAnimate = document.getElementsByClassName('animate');
  for (var i=0; i<elementsToAnimate.length; i++) {
    elementsToAnimate[i].style.animationDelay = delay + 'ms';
  }
}) ();
            
          
!
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