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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              <div id="root" class="pink-box k-centered k-container">
  <div class="k-row red-box">
    <div class="k-col k-c-2-xs k-c-4-m yellow-box k-center">A</div>
    <div class="k-col k-c-2-xs k-c-4-m yellow-box k-center">B</div>
    <div class="k-col k-c-2-xs k-c-4-m yellow-box k-center">C</div>
    <div class="k-col k-c-2-xs k-c-4-m yellow-box k-center">D</div>
  </div>
  <div class="k-row blue-box">
    <div class="k-col k-c-3 pink-box k-center">A</div>
    <div class="k-col k-c-3 pink-box k-center">B</div>
    <div class="k-col k-c-3 pink-box k-center">C</div>
  </div>
  <div class="k-row green-box">
    <div class="k-col k-c-12 yellow-box k-center">A</div>
    <div class="k-col k-c-12 yellow-box k-center">B</div>
    <div class="k-col k-c-12 yellow-box k-center">C</div>
    <div class="k-col k-c-12 yellow-box k-center">D</div>
    <div class="k-col k-c-12 yellow-box k-center">E</div>
    <div class="k-col k-c-12 yellow-box k-center">F</div>
    <div class="k-col k-c-12 yellow-box k-center">G</div>
    <div class="k-col k-c-12 yellow-box k-center">H</div>
    <div class="k-col k-c-12 yellow-box k-center">I</div>
    <div class="k-col k-c-12 yellow-box k-center">J</div>
    <div class="k-col k-c-12 yellow-box k-center">K</div>
    <div class="k-col k-c-12 yellow-box k-center">L</div>
  </div>
  <div id="pyramid" class="k-container k-centered red-box"></div>
</div>
            
          
!
            
              // Debug stuff
.red-box
  background red
.pink-box
  background pink
.yellow-box
  background yellow
.green-box
  background green
.blue-box
  background blue
.pyramid-wrapper
  padding 0
  margin 0

div
  min-height 90px
  padding 30px
body
  background teal
  padding 0
  margin 0
  
// Variables
$GRID_WIDTH = 1200px
$GUTTER_WIDTH = 20px
$MAX_COLS = 12

// For now only two breakpoints are fine
$BREAKPOINTS = {
  'xs': 0,
  's': 400,
  'm': 600,
  'l': 800,
  'xl': 1080
}

// Mixins
clearfixer()
  &:after
    display table
    clear both
    content ''

columnProperties(n,gutterWidth)
  w = unit(gutterWidth * n, px)
  width "calc(calc(100% - %s) / %s)" % (w n)
  margin-right (gutterWidth / 2)
  margin-left (gutterWidth / 2)
  float left

// Rules
html
  box-sizing border-box

*,
*:before,
*:after
  box-sizing inherit

// Utility classes
.k-center
  text-align center

.k-container
  width 100%
  height 100%
  display block
  max-width $GRID_WIDTH
  
.k-centered
  margin-left auto
  margin-right auto

.k-row
  max-width $GRID_WIDTH
  clearfixer()

.k-col
  // Make standard column defs
  for n in (1..$MAX_COLS)
    &.k-c-{n}
      columnProperties(n, $GUTTER_WIDTH)
  // Make breakpoint specific column defs
  for bk, val in $BREAKPOINTS
    for n in (1..$MAX_COLS)
      @media (min-width: unit(val, px))
        &.k-c-{n}-{bk}
          columnProperties(n, $GUTTER_WIDTH)
            
          
!
            
              const LETTERS = 'ABCDEFGHIJKL';
const numbers = [];

let i = 0;
while (i < 12) {
  numbers.push(i)
  i++;
}

const Cell = ({ size, color }) => (
  <div className="adf"></div>
);
  
const Pyramid = () => {
  return <div className="pyramid-wrapper">
    {
      numbers.map((n) => {
        return <div className="k-row" key={ `row-${n}`}>
          {
            numbers.map((m) => {
              if (m < n) {
                return (
                  <div
                    className="k-col k-c-12" 
                    key={ `cell-${n}-${m}`}></div>
                )
              }
              return (
                <div
                  className="k-col k-c-12 yellow-box"
                  key={ `cell-${n}-${m}` }
                    >{ LETTERS[m - n]}</div>
              )
            })
          }
        </div>
      })
    }
  </div>;
};


ReactDOM.render(<Pyramid />, document.getElementById('pyramid'));
            
          
!
999px
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