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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.

            
              <header class="pen-intro">
  <h1>Single Element Link Styles</h1>
  <p>These have been made to specifically be a single element link - use of pseudo but no wrapping spans here. Have tried to keep relatively browser supported.</p>
  <p><small>(I have kept the styles independent of each other so that could be taken individually easily so there is some repetition)</small></p>
</header>

<hr />

<div class="button-container">
  <h2>Draw Outline</h2>
  <a href="#" class="draw-outline">Single Outline</a>
  <a href="#" class="draw-outline draw-outline--tandem">Tandem Outline</a>
</div>

<hr />

<div class="button-container">
  <h2>Swipe Fill</h2>
  <a href="#" class="swipe-fill swipe-fill--up">Swipe Fill Up</a>
  <a href="#" class="swipe-fill swipe-fill--down">Swipe Fill Down</a>
  <a href="#" class="swipe-fill swipe-fill--left">Swipe Fill Left</a>
  <a href="#" class="swipe-fill swipe-fill--right">Swipe Fill Right</a>
</div>

<hr />
<div class="button-container">
  <h2>Box Fill</h2>
  <a href="#" class="box-fill">Box Fill In</a>
  <a href="#" class="box-fill box-fill--out">Box Fill Out</a>
</div>

<hr />

<div class="button-container">
  <h2>Cross Fade</h2>
  <a href="#" class="cross-fade">Button One</a>
</div>

<hr />

<h2>Text Underline Animation</h2>

<p>Inspired by things that have seen from <a href="https://medium.design/crafting-link-underlines-on-medium-7c03a9274f9" target="_blank">Medium</a> and other peoples <a href="https://codepen.io/ghepting/pen/tLnHK" target="_blank">pens</a> but with an added attempt at bringing in some animation. Currently limited to a link that is in total 10000px wide across all lines but want to find a better way to do that.</p>

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. <a href="javascript:void(0)">Recusandae alias laboriosam quisquam, minima vero unde facilis eius, perspiciatis impedit modi amet doloremque</a>, optio voluptatibus <a href="javascript:void(0)">veritatis fugiat corrupti ullam pariatur</a> quasi! Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quos odit, aliquam porro tempore amet voluptas voluptatibus aut consectetur, animi sit unde eos molestiae est minus sed doloribus repellendus error similique?</p>
            
          
!
            
              ////////////////////////////////////////
// DRAW OUTLINE 
////////////////////////////////////////

$outline-border-width: 2px;
$outline-border-color: black;
$sec-outline-border-color: #37b2b2;
$outline-button-padding: 16px 28px;
$outline-text-color: black;
$sec-outline-text-color: #37b2b2;
$outline-transition-time: 1.5s;
$outline-fade: 0.35s;
$outline-active-scale: 1.05;

.draw-outline {
  display: inline-block;
  padding: $outline-button-padding;
  border: $outline-border-width $outline-border-color solid;
  text-align: center;
  text-decoration: none;
  color: $outline-text-color;
  position: relative;
  transition: border-color 0.35s ease-in-out;
  z-index: 1;
  
  &:before,
  &:after {
    content: '';
    position: absolute;
    width: 0px;
    height: 0px;
    box-sizing: content-box;
    z-index: -1;
    transition: transform 0.25s ease-in-out;
    padding-left: $outline-border-width;
  }
  
  &:before {
    top: -$outline-border-width;
    left: -$outline-border-width;
    border-top: $outline-border-width transparent solid;
    border-right: $outline-border-width transparent solid;
  }
  
  &:after {
    bottom: -$outline-border-width;
    right: -$outline-border-width;
    border-bottom: $outline-border-width transparent solid;
    border-left: $outline-border-width transparent solid;
  }
  
  &:hover {
    color: $sec-outline-text-color;
    transition: color $outline-fade ease-in-out,  border-color $outline-fade ease-in-out;
    border-color: $outline-border-color;
    animation: outline-reset $outline-fade 1  forwards;
    &:before {
      animation: top-right-border $outline-transition-time/2 1 $outline-fade forwards;
    }
    &:after {
      animation: bottom-left-border $outline-transition-time/2 1 ($outline-transition-time/2)+$outline-fade forwards;
    }
  } 
  &--tandem:hover {
    &:after {
      animation: bottom-left-border $outline-transition-time/2 1 $outline-fade forwards;
    }  
  }
  &:active {
    &:before,
    &:after {
      transform: scale($outline-active-scale);
    }
  }
}

@keyframes outline-reset {
  0% {
    border-color: $outline-border-color;
  }
  100% {
    border-color: transparent;
  }
}


@keyframes top-right-border {
  0% {
    border-color: $sec-outline-border-color;
    width: 0px;
    height: 0;
  }
  50% {
    width: 100%;
    height: 0;
  }
  100% {
    border-color: $sec-outline-border-color;
    width: 100%;
    height: 100%;
  }
}

@keyframes bottom-left-border {
  0% {
    border-color: $sec-outline-border-color;
    width: 0px;
    height: 0;
  }
  50% {
    width: 100%;
    height: 0;
  }
  100% {
    border-color: $sec-outline-border-color;
    width: 100%;
    height: 100%;
  }
}



////////////////////////////////////////
// SWIPE FILL
////////////////////////////////////////

$swipe-fill-border-width: 2px;
$swipe-fill-border-color: black;
$sec-swipe-fill-border-color: black;
$swipe-fill-button-padding: 16px 28px;
$swipe-fill-text-color: black;
$sec-swipe-fill-text-color: white;
$swipe-fill-border-radius: 0px;
$swipe-fill-background: white;
$sec-swipe-fill-background: #666;
$swipe-fill-transition-time: 0.25s;

.swipe-fill {
  display: inline-block;
  padding: $swipe-fill-button-padding;
  border: $swipe-fill-border-width $swipe-fill-border-color solid;
  text-align: center;
  text-decoration: none;
  color: $swipe-fill-text-color;
  background: $swipe-fill-background;
  position: relative;
  overflow: hidden;
  transition: color $swipe-fill-transition-time ease-in-out,  border-color $swipe-fill-transition-time ease-in-out;
  z-index: 1;
  border-radius: $swipe-fill-border-radius;
  
  &:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: $sec-swipe-fill-background;
    transition: transform $swipe-fill-transition-time ease-in-out;
    z-index: -1;
  }
  
  &--up {
    &:before {
      transform: translate3d(0, 100%, 0);
    }
  }
  
  &--down {
    &:before {
      transform: translate3d(0, -100%, 0);
    }
  }
  
  &--left {
    &:before {
      transform: translate3d(-100%, 0, 0);
    }
  }
  
  &--right {
    &:before {
      transform: translate3d(100%, 0, 0);
    }
  }
  
  &:hover {
    color: $sec-swipe-fill-text-color;
    border: $swipe-fill-border-width $sec-swipe-fill-border-color solid;
    &:before {
      transform: translate3d(0, 0, 0);
    }
  }
}



////////////////////////////////////////
// BOX FILL 
////////////////////////////////////////

$box-fill-border-width: 2px;
$box-fill-border-color: black;
$sec-box-fill-border-color: black;
$box-fill-button-padding: 16px 28px;
$box-fill-text-color: black;
$sec-box-fill-text-color: white;
$box-fill-border-radius: 0px;
$box-fill-background: white;
$sec-box-fill-background: #666;
$box-fill-transition-time: 0.35s;

.box-fill {
  display: inline-block;
  padding: $box-fill-button-padding;
  border: $box-fill-border-width $box-fill-border-color solid;
  text-align: center;
  text-decoration: none;
  color: $box-fill-text-color;
  position: relative;
  overflow: hidden;
  background: $box-fill-background;
  transition: color $box-fill-transition-time ease-in-out;
  z-index: 1;
  border-radius: $box-fill-border-radius;
  
  &:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: $sec-box-fill-background;
    transition: transform $box-fill-transition-time ease-in-out, opacity $box-fill-transition-time ease-in-out;
    transform: scale(0);
    z-index: -1;
    opacity: 0;
  }
  
  &:hover {
    color: $sec-box-fill-text-color;
    &:before {
      transform: scale(1);
      opacity: 1;
    }
  }

  &--out {
    color: $sec-box-fill-text-color;
    &:before {
      transform: scale(1);
      opacity: 1;
    }
    &:hover {
      color: $box-fill-text-color;
    }
    &:hover:before {
      transform: scale(0);
      opacity: 0;
    }
  }
}



////////////////////////////////////////
// CROSS FADE 
////////////////////////////////////////

$cross-fade-border-width: 2px;
$cross-fade-border-color: black;
$sec-cross-fade-border-color: black;
$cross-fade-button-padding: 16px 28px;
$cross-fade-text-color: black;
$sec-cross-fade-text-color: white;
$cross-fade-border-radius: 0px;
$cross-fade-background: white;
$sec-cross-fade-background: #666;
$cross-fade-transition-time: 0.75s;

.cross-fade {
  display: inline-block;
  padding: $cross-fade-button-padding;
  border: $cross-fade-border-width $cross-fade-border-color solid;
  text-align: center;
  text-decoration: none;
  color: $cross-fade-text-color;
  position: relative;
  overflow: hidden;
  transition: color $cross-fade-transition-time ease-in-out;
  z-index: 1;
  border-radius: $cross-fade-border-radius;
  
  &:before,
  &:after {
    content: '';
    position: absolute;
    top: 0;
    left: -25%;
    width: 150%;
    height: 100%;
    background: rgba($sec-cross-fade-background, 0.5);
    transition: transform $cross-fade-transition-time ease-in-out;
    z-index: -1;
  }
  
  &:before {
    transform: translate3d(100%, 0, 0) skew(20deg);
    transform-origin: 0 0;
  }
  
  &:after {
    transform: translate3d(-100%, 0, 0) skew(20deg);
    transform-origin: 100% 100%;
  }
  
  &:hover {
    color: $sec-cross-fade-text-color;
    &:before,
    &:after {
      transform: translate3d(0, 0, 0) skew(20deg);
    }
  }
}



////////////////////////////////////////
// UNDERLINE ANIMATION 
////////////////////////////////////////

$link-color: #37b2b2;

a:not([class]) {
  text-shadow: rgb(255, 255, 255) 1px 0px 0px, rgb(255, 255, 255) 0.540302px 0.841471px 0px, rgb(255, 255, 255) -0.416147px 0.909297px 0px, rgb(255, 255, 255) -0.989992px 0.14112px 0px, rgb(255, 255, 255) -0.653644px -0.756802px 0px, rgb(255, 255, 255) 0.283662px -0.958924px 0px, rgb(255, 255, 255) 0.96017px -0.279415px 0px;
  text-decoration: none;
  background-image: linear-gradient($link-color 50%, $link-color 50%);
  background-size: 10000px 1px;
  color: $link-color;
  background-repeat: no-repeat;
  background-position: 0 1em;
  background-position: -10000px 1em;
  &:hover {
    background-position: 0 1em;
    transition: background-position 2s ease-in-out;
  }
}










////////////////////////////////////////
// GLOBAL SETUP 
////////////////////////////////////////
$wrapper-max-width: 1000px;

body {
  font-family: sans-serif;
  max-width: $wrapper-max-width;
  margin: 0 auto;
  padding: 30px;
  font-family: 'Maven Pro', sans-serif;
  text-align: center;
}

h1 {
  font-size: 2.8rem;
}
h2 {
  font-size: 2rem;
}
h1,h2 {
  font-family: 'Yrsa', cursive;
}

p {
  font-size: 1.25rem;
  line-height: 1.75rem;
}

hr {
  margin: 40px auto;
  max-width: 100px;
  display: block;
  height: 1px;
  border: 0;
  border-top: 1px solid #ccc;
  padding: 0; 
}

.pen-intro {
  text-align: center;
}

.button-container {
  a {
    margin: 0 10px;
  }
}
            
          
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