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HTML

              
                .wrapper
  h1 Answered Questions
  .pie-charts

    .pieID--micro-skills.pie-chart--wrapper
      h2 Micro-Skills
      .pie-chart
        .pie-chart__pie
        ul.pie-chart__legend
          li
            em Additive
            span 642
          li
            em Multiplicative
            span 358

    .pieID--categories.pie-chart--wrapper
      h2 Categories
      .pie-chart
        .pie-chart__pie
        ul.pie-chart__legend
          li
            em Horizontal
            span 768
          li
            em Vertical
            span 232

    .pieID--operations.pie-chart--wrapper
      h2 Operations
      .pie-chart
        .pie-chart__pie
        ul.pie-chart__legend
          li
            em Addition
            span 486
          li
            em Subtraction
            span 156
          li
            em Multiplication
            span 215
          li
            em Division
            span 143

              
            
!

CSS

              
                body
  font-family: "Open Sans", Arial
  background: #EEE
  
  text-align: center

  *
    font-weight: 300
    margin: 0
    padding: 0
  


@keyframes bake-pie
  from
    transform: rotate(0deg) translate3d(0,0,0)
  
.pie-chart
  font-family: "Open Sans", Arial
  &--wrapper
    width: 400px
    margin: 30px auto
    text-align: center

  &__pie, &__legend
    display: inline-block
    vertical-align: top

  &__pie
    position: relative
    height: 200px
    width: 200px
    margin: 10px auto 35px
    &::before
      content: ""
      display: block
      position: absolute
      z-index: 1
      width: 100px
      height: 100px
      background: #EEE
      border-radius: 50%
      top: 50px
      left: 50px
    &::after
      content: ""
      display: block
      width: 120px
      height: 2px
      background: rgba(0,0,0,0.1)
      border-radius: 50%
      box-shadow: 0 0 3px 4px rgba(0,0,0,0.1)
      margin: 220px auto

.slice
  position: absolute
  width: 200px
  height: 200px
  clip: rect(0px, 200px, 200px, 100px)
  animation: bake-pie 1s
  span
    display: block
    position: absolute
    top: 0
    left: 0
    background-color: black
    width: 200px
    height: 200px
    border-radius: 50%
    clip: rect(0px, 200px, 200px, 100px)


.pie-chart__legend
  display: block
  list-style-type: none
  padding: 0
  margin: 0 auto
  background: #FFF
  padding: 0.75em 0.75em 0.05em
  font-size: 13px
  box-shadow: 1px 1px 0 #DDD, 2px 2px 0 #BBB
  text-align: left
  width: 65%
  li
    height: 1.25em
    margin-bottom: 0.7em
    padding-left: 0.5em
    border-left: 1.25em solid black
  em
    font-style: normal
  span
    float: right

.pie-charts
  display: flex
  flex-direction: row
  @media (max-width: 500px)
    flex-direction: column

              
            
!

JS

              
                
function sliceSize(dataNum, dataTotal) {
  return (dataNum / dataTotal) * 360;
}

function addSlice(id, sliceSize, pieElement, offset, sliceID, color) {
  $(pieElement).append("<div class='slice "+ sliceID + "'><span></span></div>");
  var offset = offset - 1;
  var sizeRotation = -179 + sliceSize;

  $(id + " ." + sliceID).css({
    "transform": "rotate(" + offset + "deg) translate3d(0,0,0)"
  });

  $(id + " ." + sliceID + " span").css({
    "transform"       : "rotate(" + sizeRotation + "deg) translate3d(0,0,0)",
    "background-color": color
  });
}

function iterateSlices(id, sliceSize, pieElement, offset, dataCount, sliceCount, color) {
  var
    maxSize = 179,
    sliceID = "s" + dataCount + "-" + sliceCount;

  if( sliceSize <= maxSize ) {
    addSlice(id, sliceSize, pieElement, offset, sliceID, color);
  } else {
    addSlice(id, maxSize, pieElement, offset, sliceID, color);
    iterateSlices(id, sliceSize-maxSize, pieElement, offset+maxSize, dataCount, sliceCount+1, color);
  }
}

function createPie(id) {
  var
    listData      = [],
    listTotal     = 0,
    offset        = 0,
    i             = 0,
    pieElement    = id + " .pie-chart__pie"
    dataElement   = id + " .pie-chart__legend"

    color         = [
      "cornflowerblue",
      "olivedrab",
      "orange",
      "tomato",
      "crimson",
      "purple",
      "turquoise",
      "forestgreen",
      "navy"
    ];

  color = shuffle( color );

  $(dataElement+" span").each(function() {
    listData.push(Number($(this).html()));
  });

  for(i = 0; i < listData.length; i++) {
    listTotal += listData[i];
  }

  for(i=0; i < listData.length; i++) {
    var size = sliceSize(listData[i], listTotal);
    iterateSlices(id, size, pieElement, offset, i, 0, color[i]);
    $(dataElement + " li:nth-child(" + (i + 1) + ")").css("border-color", color[i]);
    offset += size;
  }
}

function shuffle(a) {
    var j, x, i;
    for (i = a.length; i; i--) {
        j = Math.floor(Math.random() * i);
        x = a[i - 1];
        a[i - 1] = a[j];
        a[j] = x;
    }

    return a;
}

function createPieCharts() {
  createPie('.pieID--micro-skills' );
  createPie('.pieID--categories' );
  createPie('.pieID--operations' );
}

createPieCharts();

              
            
!
999px

Console