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HTML

              
                <h1>Infrared CSS Filters</h1>
<h2>Just a little experiment by <a href="http://una.im">@una</a></h2>

<div class="infra-1"></div>
<div class="infra-2"></div>
<div class="infra-3"></div>

<h2>(P.S. This might not work that well on your mobile device. Recommend Chrome 44+)</h2>
              
            
!

CSS

              
                h1, h2 {
  text-align: center;
  font-family: Open Sans, Helvetica, Arial, sans-serif;
  color: dimgrey;
  font-weight: 200;
}

h2 {
  font-size: 1em;
  line-height: 0;
  font-style: italic;
  margin-bottom: 2em;
}

div {
  margin: 2em auto;
  display: block;
  width: 80%;
  max-width: 600px;
  height: 400px;
  cursor: pointer;
  
  &:after {
    content: '';
    display: block;
    height: 400px;
  }
  
  &:hover {
    filter: none;
    
    &:after {
      background: none;
      filter: none;
    }
  }
}

@mixin infrared($img, $deg: -60) {
  position: relative;
  background: url('#{$img}');
  background-size: cover;

  &:after {
    background:  url('#{$img}');
    filter: invert(1) saturate(.75) hue-rotate(#{$deg}deg);
    mix-blend-mode: color;
    background-size: cover;
  }
}

.infra-1 {
  @include infrared('https://upload.wikimedia.org/wikipedia/commons/0/06/Cayoosh-creek.jpg');
}


.infra-2 {
  @include infrared('https://guidetoiceland.is/image/4830/x/0/mountains-in-iceland-2.jpg', 80);
}


.infra-3 {
  @include infrared('https://trafalgarblog.files.wordpress.com/2014/09/new-hampshire-lake.jpg', 40);
}
              
            
!

JS

              
                
              
            
!
999px

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