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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.

HTML

            
              <div class="block"></div>

<div class="block"></div>

<div class="block"></div>

<div class="block"></div>
            
          
!

CSS

            
              @import "compass/css3";

body {padding: 50px; background: #44bdf9; position: relative;}

@mixin keyframes($name) {
  @-webkit-keyframes #{$name} { @content; }
     @-moz-keyframes #{$name} { @content; }
          @keyframes #{$name} { @content; }
}

$lightbrown: #c64d1d;
 $darkbrown: #790907;
    $yellow: #fa9844;
     $black: #000000;

@mixin frame1 {
  box-shadow:
   1px 0px 0px $lightbrown,
   2px 0px 0px $lightbrown,
   3px 0px 0px $lightbrown,
   4px 0px 0px $lightbrown,
   5px 0px 0px $lightbrown,
   6px 0px 0px $lightbrown,
   7px 0px 0px $lightbrown,
   8px 0px 0px $lightbrown,
   9px 0px 0px $lightbrown,
  10px 0px 0px $lightbrown,
  11px 0px 0px $lightbrown,
  12px 0px 0px $lightbrown,
  13px 0px 0px $lightbrown,
  14px 0px 0px $lightbrown,
  
   0px 1px 0px $lightbrown,
   1px 1px 0px $yellow,
   2px 1px 0px $yellow,
   3px 1px 0px $yellow,
   4px 1px 0px $yellow,
   5px 1px 0px $yellow,
   6px 1px 0px $yellow,
   7px 1px 0px $yellow,
   8px 1px 0px $yellow,
   9px 1px 0px $yellow,
  10px 1px 0px $yellow,
  11px 1px 0px $yellow,
  12px 1px 0px $yellow,
  13px 1px 0px $yellow,
  14px 1px 0px $yellow,
  15px 1px 0px $black,
  
   0px 2px 0px $lightbrown,
   1px 2px 0px $yellow,
   2px 2px 0px $black,
   3px 2px 0px $yellow,
   4px 2px 0px $yellow,
   5px 2px 0px $yellow,
   6px 2px 0px $yellow,
   7px 2px 0px $yellow,
   8px 2px 0px $yellow,
   9px 2px 0px $yellow,
  10px 2px 0px $yellow,
  11px 2px 0px $yellow,
  12px 2px 0px $yellow,
  13px 2px 0px $black,
  14px 2px 0px $yellow,
  15px 2px 0px $black,
  
   0px 3px 0px $lightbrown,
   1px 3px 0px $yellow,
   2px 3px 0px $yellow,
   3px 3px 0px $yellow,
   4px 3px 0px $yellow,
   5px 3px 0px $lightbrown,
   6px 3px 0px $lightbrown,
   7px 3px 0px $lightbrown,
   8px 3px 0px $lightbrown,
   9px 3px 0px $lightbrown,
  10px 3px 0px $yellow,
  11px 3px 0px $yellow,
  12px 3px 0px $yellow,
  13px 3px 0px $yellow,
  14px 3px 0px $yellow,
  15px 3px 0px $black,
  
   0px 4px 0px $lightbrown,
   1px 4px 0px $yellow,
   2px 4px 0px $yellow,
   3px 4px 0px $yellow,
   4px 4px 0px $lightbrown,
   5px 4px 0px $lightbrown,
   6px 4px 0px $black,
   7px 4px 0px $black,
   8px 4px 0px $black,
   9px 4px 0px $lightbrown,
  10px 4px 0px $lightbrown,
  11px 4px 0px $yellow,
  12px 4px 0px $yellow,
  13px 4px 0px $yellow,
  14px 4px 0px $yellow,
  15px 4px 0px $black,
  
   0px 5px 0px $lightbrown,
   1px 5px 0px $yellow,
   2px 5px 0px $yellow,
   3px 5px 0px $yellow,
   4px 5px 0px $lightbrown,
   5px 5px 0px $lightbrown,
   6px 5px 0px $black,
   7px 5px 0px $yellow,
   8px 5px 0px $yellow,
   9px 5px 0px $lightbrown,
  10px 5px 0px $lightbrown,
  11px 5px 0px $black,
  12px 5px 0px $yellow,
  13px 5px 0px $yellow,
  14px 5px 0px $yellow,
  15px 5px 0px $black,
  
   0px 6px 0px $lightbrown,
   1px 6px 0px $yellow,
   2px 6px 0px $yellow,
   3px 6px 0px $yellow,
   4px 6px 0px $lightbrown,
   5px 6px 0px $lightbrown,
   6px 6px 0px $black,
   7px 6px 0px $yellow,
   8px 6px 0px $yellow,
   9px 6px 0px $lightbrown,
  10px 6px 0px $lightbrown,
  11px 6px 0px $black,
  12px 6px 0px $yellow,
  13px 6px 0px $yellow,
  14px 6px 0px $yellow,
  15px 6px 0px $black,
  
   0px 7px 0px $lightbrown,
   1px 7px 0px $yellow,
   2px 7px 0px $yellow,
   3px 7px 0px $yellow,
   4px 7px 0px $yellow,
   5px 7px 0px $black,
   6px 7px 0px $black,
   7px 7px 0px $yellow,
   8px 7px 0px $lightbrown,
   9px 7px 0px $lightbrown,
  10px 7px 0px $lightbrown,
  11px 7px 0px $black,
  12px 7px 0px $yellow,
  13px 7px 0px $yellow,
  14px 7px 0px $yellow,
  15px 7px 0px $black,
  
   0px 8px 0px $lightbrown,
   1px 8px 0px $yellow,
   2px 8px 0px $yellow,
   3px 8px 0px $yellow,
   4px 8px 0px $yellow,
   5px 8px 0px $yellow,
   6px 8px 0px $yellow,
   7px 8px 0px $lightbrown,
   8px 8px 0px $lightbrown,
   9px 8px 0px $black,
  10px 8px 0px $black,
  11px 8px 0px $black,
  12px 8px 0px $yellow,
  13px 8px 0px $yellow,
  14px 8px 0px $yellow,
  15px 8px 0px $black,
  
   0px 9px 0px $lightbrown,
   1px 9px 0px $yellow,
   2px 9px 0px $yellow,
   3px 9px 0px $yellow,
   4px 9px 0px $yellow,
   5px 9px 0px $yellow,
   6px 9px 0px $yellow,
   7px 9px 0px $lightbrown,
   8px 9px 0px $lightbrown,
   9px 9px 0px $black,
  10px 9px 0px $yellow,
  11px 9px 0px $yellow,
  12px 9px 0px $yellow,
  13px 9px 0px $yellow,
  14px 9px 0px $yellow,
  15px 9px 0px $black,

   0px 10px 0px $lightbrown,
   1px 10px 0px $yellow,
   2px 10px 0px $yellow,
   3px 10px 0px $yellow,
   4px 10px 0px $yellow,
   5px 10px 0px $yellow,
   6px 10px 0px $yellow,
   7px 10px 0px $yellow,
   8px 10px 0px $black,
   9px 10px 0px $black,
  10px 10px 0px $yellow,
  11px 10px 0px $yellow,
  12px 10px 0px $yellow,
  13px 10px 0px $yellow,
  14px 10px 0px $yellow,
  15px 10px 0px $black,
  
   0px 11px 0px $lightbrown,
   1px 11px 0px $yellow,
   2px 11px 0px $yellow,
   3px 11px 0px $yellow,
   4px 11px 0px $yellow,
   5px 11px 0px $yellow,
   6px 11px 0px $yellow,
   7px 11px 0px $lightbrown,
   8px 11px 0px $lightbrown,
   9px 11px 0px $yellow,
  10px 11px 0px $yellow,
  11px 11px 0px $yellow,
  12px 11px 0px $yellow,
  13px 11px 0px $yellow,
  14px 11px 0px $yellow,
  15px 11px 0px $black,
  
   0px 12px 0px $lightbrown,
   1px 12px 0px $yellow,
   2px 12px 0px $yellow,
   3px 12px 0px $yellow,
   4px 12px 0px $yellow,
   5px 12px 0px $yellow,
   6px 12px 0px $yellow,
   7px 12px 0px $lightbrown,
   8px 12px 0px $lightbrown,
   9px 12px 0px $black,
  10px 12px 0px $yellow,
  11px 12px 0px $yellow,
  12px 12px 0px $yellow,
  13px 12px 0px $yellow,
  14px 12px 0px $yellow,
  15px 12px 0px $black,
  
   0px 13px 0px $lightbrown,
   1px 13px 0px $yellow,
   2px 13px 0px $black,
   3px 13px 0px $yellow,
   4px 13px 0px $yellow,
   5px 13px 0px $yellow,
   6px 13px 0px $yellow,
   7px 13px 0px $yellow,
   8px 13px 0px $black,
   9px 13px 0px $black,
  10px 13px 0px $yellow,
  11px 13px 0px $yellow,
  12px 13px 0px $yellow,
  13px 13px 0px $black,
  14px 13px 0px $yellow,
  15px 13px 0px $black,
  
   0px 14px 0px $lightbrown,
   1px 14px 0px $yellow,
   2px 14px 0px $yellow,
   3px 14px 0px $yellow,
   4px 14px 0px $yellow,
   5px 14px 0px $yellow,
   6px 14px 0px $yellow,
   7px 14px 0px $yellow,
   8px 14px 0px $yellow,
   9px 14px 0px $yellow,
  10px 14px 0px $yellow,
  11px 14px 0px $yellow,
  12px 14px 0px $yellow,
  13px 14px 0px $yellow,
  14px 14px 0px $yellow,
  15px 14px 0px $black,
  
   0px 15px 0px $black,
   1px 15px 0px $black,
   2px 15px 0px $black,
   3px 15px 0px $black,
   4px 15px 0px $black,
   5px 15px 0px $black,
   6px 15px 0px $black,
   7px 15px 0px $black,
   8px 15px 0px $black,
   9px 15px 0px $black,
  10px 15px 0px $black,
  11px 15px 0px $black,
  12px 15px 0px $black,
  13px 15px 0px $black,
  14px 15px 0px $black,
  15px 15px 0px $black;
}

@mixin frame2 {
box-shadow:
    1px 0px 0px $lightbrown,
    2px 0px 0px $lightbrown,
    3px 0px 0px $lightbrown,
    4px 0px 0px $lightbrown,
    5px 0px 0px $lightbrown,
    6px 0px 0px $lightbrown,
    7px 0px 0px $lightbrown,
    8px 0px 0px $lightbrown,
    9px 0px 0px $lightbrown,
   10px 0px 0px $lightbrown,
   11px 0px 0px $lightbrown,
   12px 0px 0px $lightbrown,
   13px 0px 0px $lightbrown,
   14px 0px 0px $lightbrown,
   
    0px 1px 0px $lightbrown,
    1px 1px 0px $lightbrown,
    2px 1px 0px $lightbrown,
    3px 1px 0px $lightbrown,
    4px 1px 0px $lightbrown,
    5px 1px 0px $lightbrown,
    6px 1px 0px $lightbrown,
    7px 1px 0px $lightbrown,
    8px 1px 0px $lightbrown,
    9px 1px 0px $lightbrown,
   10px 1px 0px $lightbrown,
   11px 1px 0px $lightbrown,
   12px 1px 0px $lightbrown,
   13px 1px 0px $lightbrown,
   14px 1px 0px $lightbrown,
   15px 1px 0px $black,
   
    0px 2px 0px $lightbrown,
    1px 2px 0px $lightbrown,
    2px 2px 0px $black,
    3px 2px 0px $lightbrown,
    4px 2px 0px $lightbrown,
    5px 2px 0px $lightbrown,
    6px 2px 0px $lightbrown,
    7px 2px 0px $lightbrown,
    8px 2px 0px $lightbrown,
    9px 2px 0px $lightbrown,
   10px 2px 0px $lightbrown,
   11px 2px 0px $lightbrown,
   12px 2px 0px $lightbrown,
   13px 2px 0px $black,
   14px 2px 0px $lightbrown,
   15px 2px 0px $black,
   
    0px 3px 0px $lightbrown,
    1px 3px 0px $lightbrown,
    2px 3px 0px $lightbrown,
    3px 3px 0px $lightbrown,
    4px 3px 0px $lightbrown,
    5px 3px 0px $lightbrown,
    6px 3px 0px $lightbrown,
    7px 3px 0px $lightbrown,
    8px 3px 0px $lightbrown,
    9px 3px 0px $lightbrown,
   10px 3px 0px $lightbrown,
   11px 3px 0px $lightbrown,
   12px 3px 0px $lightbrown,
   13px 3px 0px $lightbrown,
   14px 3px 0px $lightbrown,
   15px 3px 0px $black,
   
    0px 4px 0px $lightbrown,
    1px 4px 0px $lightbrown,
    2px 4px 0px $lightbrown,
    3px 4px 0px $lightbrown,
    4px 4px 0px $lightbrown,
    5px 4px 0px $lightbrown,
    6px 4px 0px $black,
    7px 4px 0px $black,
    8px 4px 0px $black,
    9px 4px 0px $lightbrown,
   10px 4px 0px $lightbrown,
   11px 4px 0px $lightbrown,
   12px 4px 0px $lightbrown,
   13px 4px 0px $lightbrown,
   14px 4px 0px $lightbrown,
   15px 4px 0px $black,
   
    0px 5px 0px $lightbrown,
    1px 5px 0px $lightbrown,
    2px 5px 0px $lightbrown,
    3px 5px 0px $lightbrown,
    4px 5px 0px $lightbrown,
    5px 5px 0px $lightbrown,
    6px 5px 0px $black,
    7px 5px 0px $lightbrown,
    8px 5px 0px $lightbrown,
    9px 5px 0px $lightbrown,
   10px 5px 0px $lightbrown,
   11px 5px 0px $black,
   12px 5px 0px $lightbrown,
   13px 5px 0px $lightbrown,
   14px 5px 0px $lightbrown,
   15px 5px 0px $black,
   
    0px 6px 0px $lightbrown,
    1px 6px 0px $lightbrown,
    2px 6px 0px $lightbrown,
    3px 6px 0px $lightbrown,
    4px 6px 0px $lightbrown,
    5px 6px 0px $lightbrown,
    6px 6px 0px $black,
    7px 6px 0px $lightbrown,
    8px 6px 0px $lightbrown,
    9px 6px 0px $lightbrown,
   10px 6px 0px $lightbrown,
   11px 6px 0px $black,
   12px 6px 0px $lightbrown,
   13px 6px 0px $lightbrown,
   14px 6px 0px $lightbrown,
   15px 6px 0px $black,
   
    0px 7px 0px $lightbrown,
    1px 7px 0px $lightbrown,
    2px 7px 0px $lightbrown,
    3px 7px 0px $lightbrown,
    4px 7px 0px $lightbrown,
    5px 7px 0px $black,
    6px 7px 0px $black,
    7px 7px 0px $lightbrown,
    8px 7px 0px $lightbrown,
    9px 7px 0px $lightbrown,
   10px 7px 0px $lightbrown,
   11px 7px 0px $black,
   12px 7px 0px $lightbrown,
   13px 7px 0px $lightbrown,
   14px 7px 0px $lightbrown,
   15px 7px 0px $black,
   
    0px 8px 0px $lightbrown,
    1px 8px 0px $lightbrown,
    2px 8px 0px $lightbrown,
    3px 8px 0px $lightbrown,
    4px 8px 0px $lightbrown,
    5px 8px 0px $lightbrown,
    6px 8px 0px $lightbrown,
    7px 8px 0px $lightbrown,
    8px 8px 0px $lightbrown,
    9px 8px 0px $black,
   10px 8px 0px $black,
   11px 8px 0px $black,
   12px 8px 0px $lightbrown,
   13px 8px 0px $lightbrown,
   14px 8px 0px $lightbrown,
   15px 8px 0px $black,
   
    0px 9px 0px $lightbrown,
    1px 9px 0px $lightbrown,
    2px 9px 0px $lightbrown,
    3px 9px 0px $lightbrown,
    4px 9px 0px $lightbrown,
    5px 9px 0px $lightbrown,
    6px 9px 0px $lightbrown,
    7px 9px 0px $lightbrown,
    8px 9px 0px $lightbrown,
    9px 9px 0px $black,
   10px 9px 0px $lightbrown,
   11px 9px 0px $lightbrown,
   12px 9px 0px $lightbrown,
   13px 9px 0px $lightbrown,
   14px 9px 0px $lightbrown,
   15px 9px 0px $black,
   
   0px 10px 0px $lightbrown,
   1px 10px 0px $lightbrown,
   2px 10px 0px $lightbrown,
   3px 10px 0px $lightbrown,
   4px 10px 0px $lightbrown,
   5px 10px 0px $lightbrown,
   6px 10px 0px $lightbrown,
   7px 10px 0px $lightbrown,
   8px 10px 0px $black,
   9px 10px 0px $black,
  10px 10px 0px $lightbrown,
  11px 10px 0px $lightbrown,
  12px 10px 0px $lightbrown,
  13px 10px 0px $lightbrown,
  14px 10px 0px $lightbrown,
  15px 10px 0px $black,
  
   0px 11px 0px $lightbrown,
   1px 11px 0px $lightbrown,
   2px 11px 0px $lightbrown,
   3px 11px 0px $lightbrown,
   4px 11px 0px $lightbrown,
   5px 11px 0px $lightbrown,
   6px 11px 0px $lightbrown,
   7px 11px 0px $lightbrown,
   8px 11px 0px $lightbrown,
   9px 11px 0px $lightbrown,
  10px 11px 0px $lightbrown,
  11px 11px 0px $lightbrown,
  12px 11px 0px $lightbrown,
  13px 11px 0px $lightbrown,
  14px 11px 0px $lightbrown,
  15px 11px 0px $black,
  
   0px 12px 0px $lightbrown,
   1px 12px 0px $lightbrown,
   2px 12px 0px $lightbrown,
   3px 12px 0px $lightbrown,
   4px 12px 0px $lightbrown,
   5px 12px 0px $lightbrown,
   6px 12px 0px $lightbrown,
   7px 12px 0px $lightbrown,
   8px 12px 0px $lightbrown,
   9px 12px 0px $black,
  10px 12px 0px $lightbrown,
  11px 12px 0px $lightbrown,
  12px 12px 0px $lightbrown,
  13px 12px 0px $lightbrown,
  14px 12px 0px $lightbrown,
  15px 12px 0px $black,
  
   0px 13px 0px $lightbrown,
   1px 13px 0px $lightbrown,
   2px 13px 0px $black,
   3px 13px 0px $lightbrown,
   4px 13px 0px $lightbrown,
   5px 13px 0px $lightbrown,
   6px 13px 0px $lightbrown,
   7px 13px 0px $lightbrown,
   8px 13px 0px $black,
   9px 13px 0px $black,
  10px 13px 0px $lightbrown,
  11px 13px 0px $lightbrown,
  12px 13px 0px $lightbrown,
  13px 13px 0px $black,
  14px 13px 0px $lightbrown,
  15px 13px 0px $black,
  
   0px 14px 0px $lightbrown,
   1px 14px 0px $lightbrown,
   2px 14px 0px $lightbrown,
   3px 14px 0px $lightbrown,
   4px 14px 0px $lightbrown,
   5px 14px 0px $lightbrown,
   6px 14px 0px $lightbrown,
   7px 14px 0px $lightbrown,
   8px 14px 0px $lightbrown,
   9px 14px 0px $lightbrown,
  10px 14px 0px $lightbrown,
  11px 14px 0px $lightbrown,
  12px 14px 0px $lightbrown,
  13px 14px 0px $lightbrown,
  14px 14px 0px $lightbrown,
  15px 14px 0px $black,
  
   0px 15px 0px $black,
   1px 15px 0px $black,
   2px 15px 0px $black,
   3px 15px 0px $black,
   4px 15px 0px $black,
   5px 15px 0px $black,
   6px 15px 0px $black,
   7px 15px 0px $black,
   8px 15px 0px $black,
   9px 15px 0px $black,
  10px 15px 0px $black,
  11px 15px 0px $black,
  12px 15px 0px $black,
  13px 15px 0px $black,
  14px 15px 0px $black,
  15px 15px 0px $black;  
}

@mixin frame3 {
  box-shadow:
    1px 0px 0px $lightbrown,
    2px 0px 0px $lightbrown,
    3px 0px 0px $lightbrown,
    4px 0px 0px $lightbrown,
    5px 0px 0px $lightbrown,
    6px 0px 0px $lightbrown,
    7px 0px 0px $lightbrown,
    8px 0px 0px $lightbrown,
    9px 0px 0px $lightbrown,
   10px 0px 0px $lightbrown,
   11px 0px 0px $lightbrown,
   12px 0px 0px $lightbrown,
   13px 0px 0px $lightbrown,
   14px 0px 0px $lightbrown,
   
    0px 1px 0px $lightbrown,
    1px 1px 0px $darkbrown,
    2px 1px 0px $darkbrown,
    3px 1px 0px $darkbrown,
    4px 1px 0px $darkbrown,
    5px 1px 0px $darkbrown,
    6px 1px 0px $darkbrown,
    7px 1px 0px $darkbrown,
    8px 1px 0px $darkbrown,
    9px 1px 0px $darkbrown,
   10px 1px 0px $darkbrown,
   11px 1px 0px $darkbrown,
   12px 1px 0px $darkbrown,
   13px 1px 0px $darkbrown,
   14px 1px 0px $darkbrown,
   15px 1px 0px $black,
   
    0px 2px 0px $lightbrown,
    1px 2px 0px $darkbrown,
    2px 2px 0px $black,
    3px 2px 0px $darkbrown,
    4px 2px 0px $darkbrown,
    5px 2px 0px $darkbrown,
    6px 2px 0px $darkbrown,
    7px 2px 0px $darkbrown,
    8px 2px 0px $darkbrown,
    9px 2px 0px $darkbrown,
   10px 2px 0px $darkbrown,
   11px 2px 0px $darkbrown,
   12px 2px 0px $darkbrown,
   13px 2px 0px $black,
   14px 2px 0px $darkbrown,
   15px 2px 0px $black,
   
    0px 3px 0px $lightbrown,
    1px 3px 0px $darkbrown,
    2px 3px 0px $darkbrown,
    3px 3px 0px $darkbrown,
    4px 3px 0px $darkbrown,
    5px 3px 0px $lightbrown,
    6px 3px 0px $lightbrown,
    7px 3px 0px $lightbrown,
    8px 3px 0px $lightbrown,
    9px 3px 0px $lightbrown,
   10px 3px 0px $darkbrown,
   11px 3px 0px $darkbrown,
   12px 3px 0px $darkbrown,
   13px 3px 0px $darkbrown,
   14px 3px 0px $darkbrown,
   15px 3px 0px $black,
   
    0px 4px 0px $lightbrown,
    1px 4px 0px $darkbrown,
    2px 4px 0px $darkbrown,
    3px 4px 0px $darkbrown,
    4px 4px 0px $lightbrown,
    5px 4px 0px $lightbrown,
    6px 4px 0px $black,
    7px 4px 0px $black,
    8px 4px 0px $black,
    9px 4px 0px $lightbrown,
   10px 4px 0px $lightbrown,
   11px 4px 0px $darkbrown,
   12px 4px 0px $darkbrown,
   13px 4px 0px $darkbrown,
   14px 4px 0px $darkbrown,
   15px 4px 0px $black,
   
    0px 5px 0px $lightbrown,
    1px 5px 0px $darkbrown,
    2px 5px 0px $darkbrown,
    3px 5px 0px $darkbrown,
    4px 5px 0px $lightbrown,
    5px 5px 0px $lightbrown,
    6px 5px 0px $black,
    7px 5px 0px $darkbrown,
    8px 5px 0px $darkbrown,
    9px 5px 0px $lightbrown,
   10px 5px 0px $lightbrown,
   11px 5px 0px $black,
   12px 5px 0px $darkbrown,
   13px 5px 0px $darkbrown,
   14px 5px 0px $darkbrown,
   15px 5px 0px $black,
   
    0px 6px 0px $lightbrown,
    1px 6px 0px $darkbrown,
    2px 6px 0px $darkbrown,
    3px 6px 0px $darkbrown,
    4px 6px 0px $lightbrown,
    5px 6px 0px $lightbrown,
    6px 6px 0px $black,
    7px 6px 0px $darkbrown,
    8px 6px 0px $darkbrown,
    9px 6px 0px $lightbrown,
   10px 6px 0px $lightbrown,
   11px 6px 0px $black,
   12px 6px 0px $darkbrown,
   13px 6px 0px $darkbrown,
   14px 6px 0px $darkbrown,
   15px 6px 0px $black,
   
    0px 7px 0px $lightbrown,
    1px 7px 0px $darkbrown,
    2px 7px 0px $darkbrown,
    3px 7px 0px $darkbrown,
    4px 7px 0px $darkbrown,
    5px 7px 0px $black,
    6px 7px 0px $black,
    7px 7px 0px $darkbrown,
    8px 7px 0px $lightbrown,
    9px 7px 0px $lightbrown,
   10px 7px 0px $lightbrown,
   11px 7px 0px $black,
   12px 7px 0px $darkbrown,
   13px 7px 0px $darkbrown,
   14px 7px 0px $darkbrown,
   15px 7px 0px $black,
   
    0px 8px 0px $lightbrown,
    1px 8px 0px $darkbrown,
    2px 8px 0px $darkbrown,
    3px 8px 0px $darkbrown,
    4px 8px 0px $darkbrown,
    5px 8px 0px $darkbrown,
    6px 8px 0px $darkbrown,
    7px 8px 0px $lightbrown,
    8px 8px 0px $lightbrown,
    9px 8px 0px $black,
   10px 8px 0px $black,
   11px 8px 0px $black,
   12px 8px 0px $darkbrown,
   13px 8px 0px $darkbrown,
   14px 8px 0px $darkbrown,
   15px 8px 0px $black,
   
    0px 9px 0px $lightbrown,
    1px 9px 0px $darkbrown,
    2px 9px 0px $darkbrown,
    3px 9px 0px $darkbrown,
    4px 9px 0px $darkbrown,
    5px 9px 0px $darkbrown,
    6px 9px 0px $darkbrown,
    7px 9px 0px $lightbrown,
    8px 9px 0px $lightbrown,
    9px 9px 0px $black,
   10px 9px 0px $darkbrown,
   11px 9px 0px $darkbrown,
   12px 9px 0px $darkbrown,
   13px 9px 0px $darkbrown,
   14px 9px 0px $darkbrown,
   15px 9px 0px $black,

   0px 10px 0px $lightbrown,
   1px 10px 0px $darkbrown,
   2px 10px 0px $darkbrown,
   3px 10px 0px $darkbrown,
   4px 10px 0px $darkbrown,
   5px 10px 0px $darkbrown,
   6px 10px 0px $darkbrown,
   7px 10px 0px $darkbrown,
   8px 10px 0px $black,
   9px 10px 0px $black,
  10px 10px 0px $darkbrown,
  11px 10px 0px $darkbrown,
  12px 10px 0px $darkbrown,
  13px 10px 0px $darkbrown,
  14px 10px 0px $darkbrown,
  15px 10px 0px $black,
  
   0px 11px 0px $lightbrown,
   1px 11px 0px $darkbrown,
   2px 11px 0px $darkbrown,
   3px 11px 0px $darkbrown,
   4px 11px 0px $darkbrown,
   5px 11px 0px $darkbrown,
   6px 11px 0px $darkbrown,
   7px 11px 0px $lightbrown,
   8px 11px 0px $lightbrown,
   9px 11px 0px $darkbrown,
  10px 11px 0px $darkbrown,
  11px 11px 0px $darkbrown,
  12px 11px 0px $darkbrown,
  13px 11px 0px $darkbrown,
  14px 11px 0px $darkbrown,
  15px 11px 0px $black,

   0px 12px 0px $lightbrown,
   1px 12px 0px $darkbrown,
   2px 12px 0px $darkbrown,
   3px 12px 0px $darkbrown,
   4px 12px 0px $darkbrown,
   5px 12px 0px $darkbrown,
   6px 12px 0px $darkbrown,
   7px 12px 0px $lightbrown,
   8px 12px 0px $lightbrown,
   9px 12px 0px $black,
  10px 12px 0px $darkbrown,
  11px 12px 0px $darkbrown,
  12px 12px 0px $darkbrown,
  13px 12px 0px $darkbrown,
  14px 12px 0px $darkbrown,
  15px 12px 0px $black,

   0px 13px 0px $lightbrown,
   1px 13px 0px $darkbrown,
   2px 13px 0px $black,
   3px 13px 0px $darkbrown,
   4px 13px 0px $darkbrown,
   5px 13px 0px $darkbrown,
   6px 13px 0px $darkbrown,
   7px 13px 0px $darkbrown,
   8px 13px 0px $black,
   9px 13px 0px $black,
  10px 13px 0px $darkbrown,
  11px 13px 0px $darkbrown,
  12px 13px 0px $darkbrown,
  13px 13px 0px $black,
  14px 13px 0px $darkbrown,
  15px 13px 0px $black,

   0px 14px 0px $lightbrown,
   1px 14px 0px $darkbrown,
   2px 14px 0px $darkbrown,
   3px 14px 0px $darkbrown,
   4px 14px 0px $darkbrown,
   5px 14px 0px $darkbrown,
   6px 14px 0px $darkbrown,
   7px 14px 0px $darkbrown,
   8px 14px 0px $darkbrown,
   9px 14px 0px $darkbrown,
  10px 14px 0px $darkbrown,
  11px 14px 0px $darkbrown,
  12px 14px 0px $darkbrown,
  13px 14px 0px $darkbrown,
  14px 14px 0px $darkbrown,
  15px 14px 0px $black,

   0px 15px 0px $black,
   1px 15px 0px $black,
   2px 15px 0px $black,
   3px 15px 0px $black,
   4px 15px 0px $black,
   5px 15px 0px $black,
   6px 15px 0px $black,
   7px 15px 0px $black,
   8px 15px 0px $black,
   9px 15px 0px $black,
  10px 15px 0px $black,
  11px 15px 0px $black,
  12px 15px 0px $black,
  13px 15px 0px $black,
  14px 15px 0px $black,
  15px 15px 0px $black;
}


@include keyframes(block) {
   0% { @include frame1; }
  40% { @include frame2; }
  60% { @include frame3; }
  80% { @include frame2; }
}

.block {
  position: relative;
  width: 1px;
  height: 1px;
	-webkit-transition: none;
	-webkit-transform: scale(5); 
	-webkit-animation: block .9s step-end infinite;
  display: inline-block;
  margin-right: 75px;
}




            
          
!

JS

            
              
            
          
!
999px

Console