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HTML

              
                <div class="intro">
  <h1>Speech Bubble Style Blockquotes</h1>
  <h2>with Dynamic SASS right triangles</h2>
</div>
<div class="row">
  <div class="col">
    <div class="center">
      <blockquote class="speechbubble speechbubble--teal speechbubble--left">
        <p class="speechbubble__quote">“A squirrel dying in front of your house may be more relevant to your interests right now than people dying in Africa.”</p>
        <footer>
          <cite class="speechbubble__source">-Mark Zuckerberg</cite>
        </footer>
      </blockquote>
    </div>
  </div>
  <div class="col">
    <blockquote class="speechbubble speechbubble--teal speechbubble--bottom">
      <p class="speechbubble__quote">"This represents a huge step forward in our future capabilities for safe and precise Mars landing, and demonstrates a highly effective approach for rapid, low-cost validation of new technologies for the entry, descent and landing of spacecraft."</p>
      <footer>
        <cite class="speechbubble__source">-Chad Edwards, chief technologist of NASA's Mars Exploration Directorate</cite>
      </footer>
    </blockquote>
  </div>
</div>
<div class="row">
  <div class="col">
    <div class="center">
      <blockquote class="speechbubble speechbubble--teal speechbubble--right">
        <p class="speechbubble__quote">“Technology is nothing. What’s important is that you have a faith in people, that they’re basically good and smart, and if you give them tools, they’ll do wonderful things with them.”</p>
        <footer>
          <cite class="speechbubble__source">-Steve Jobs</cite>
        </footer>
      </blockquote>
    </div>
  </div>
  <div class="col">
    <blockquote class="speechbubble speechbubble--teal speechbubble--top">
      <p class="speechbubble__quote">“Opportunity is missed by most people because it is dressed in overalls and looks like work.”</p>
      <footer>
        <cite class="speechbubble__source">-Thomas Edison</cite>
      </footer>
    </blockquote>
  </div>
</div>
              
            
!

CSS

              
                /* -------------- Mixins & Functions --------------- */
/* 
Math functions for solving for square root then referencing this with good old pythagorean theorem to implement nearly-perfect right triangles
*/
@function _squareRoot($r) {
  $x0: 1;
  $x1: $x0;

  @for $i from 1 through 10 {
    $x1: $x0 - ($x0 * $x0 - abs($r)) / (2 * $x0);
    $x0: $x1;
  }

  @return $x1;
}
@function pythagorean($size) {
  @return _squareRoot(($size*$size)/2);
}
/*
SASS doesn't believe you need to be able to multiply a unit of measurement by itself so to add a unit we multiply by 1px because math
*/
@function pixelify($value) {
  @return ($value * 1px);
}
/*
This is the meat of the implementation, a powerful mixin that can be added to either :before or :after elements to tack on a triangle based on the values passed
*/
@mixin triangle($direction, $size: 6, $color: #222) {
  content: '';
  display: block;
  position: absolute;
  height: 0;
  width: 0;
  @if ($direction == 'up') {
    border-bottom: pixelify($size) solid $color;
    border-left: pixelify(pythagorean($size)) solid transparent;
    border-right: pixelify(pythagorean($size)) solid transparent;
    top: pixelify($size * -1);
  }
  @else if ($direction == 'down') {
    border-top: pixelify($size) solid $color;
    border-left: pixelify(pythagorean($size)) solid transparent;
    border-right: pixelify(pythagorean($size)) solid transparent;
    bottom: pixelify($size * -1);
  }
  @else if ($direction == 'left') {
    border-top: pixelify(pythagorean($size)) solid transparent;
    border-bottom: pixelify(pythagorean($size)) solid transparent;
    border-right: pixelify($size) solid $color;
    left: pixelify($size * -1);
  }
  @else if ($direction == 'right') {
    border-top: pixelify(pythagorean($size)) solid transparent;
    border-bottom: pixelify(pythagorean($size)) solid transparent;
    border-left: pixelify($size) solid $color;
    right: pixelify($size * -1);
  }
}

/* -------------- Styles --------------- */
.speechbubble {
  display: inline-block;
  font-size: 30px;
  line-height: 1.14;
  text-align: center;
  box-sizing: border-box;
  position: relative;
  width: 13.5em;
  max-width: 100%;
  height: auto;
  padding: 1em 2em;
  margin: 2em auto;
  border-radius: 20px;
  &--teal {
    background-color: #02CED1;
    color: #ffffff;
  }
  &--top {
    margin-top: 50px;
  }
  &--top:after {
    @include triangle(up, 50, #02CED1);
    left: 50px;
  }
  &--bottom {
    margin-bottom: 50px;    
  }
  &--bottom:after {
    @include triangle(down, 50, #02CED1);
    right: 50px;
  }
  &--left {
    margin-left: 50px;
    // Keep your triangle from breaking mobile layout
    max-width: calc(100% - 50px);
  }
  &--left:after {
    @include triangle(left, 50, #02CED1);
    top: 50px;
  }
  &--right {
    margin-right: 50px;
    max-width: calc(100% - 50px);
  }
  &--right:after {
    @include triangle(right, 50, #02CED1);
    bottom: 50px;
  }
  &__quote {
    font-style: italic;
    font-family: Georgia, serif;
    margin-bottom: .25em;
  }
  &__source {
    color: #000000;
    font-style: normal;
    font-family: "Lucida Sans Unicode", "Lucida Grande", sans-serif;
    font-weight: bold;
  }
}

/* -------------- Presentation --------------- */
.intro {
  text-align: center;
  & h1 {
    margin-bottom: .25em;
  }
  & h2 {
    margin-top: .25em;
  }
}
.row:after {
  content: "";
  display: table;
  clear: both;
}

.col {
  box-sizing: border-box;
  margin: 0;
  padding-left: 5px;
  padding-right: 5px;
  width: 50%;
  text-align: center;
  float: left;
  display: inline-block;
  position: relative;
}

.center {
  margin: 0 auto;
  display: block;
  width: auto;
}

@media screen and (max-width: 1049px) {
  .col {
    width: 100%;
  }
}
              
            
!

JS

              
                /* ---------- No JS ----------- */
              
            
!
999px

Console