CodePen Embed - Css Pattern

$color-1: #3C989E;
$color-1-t: transparentize($color-1, 1);
$color-2: #ED5276;
$color-2-t: transparentize($color-2, 1);
$color-3: #F57A82;
$color-3-t: transparentize($color-3, 1);
$color-4: #F4CDA5;
$color-4-t: transparentize($color-4, 1);
$color-5: #5DB5A4;
$color-5-t: transparentize($color-5, 1);

$fig-1-color: $color-2;
$fig-1-color-t: $color-2-t;

$fig-2-color: $color-4;
$fig-2-color-t: $color-4-t;


$size: 5em;
$size-half: $size/2;
$size-third: $size/3;
$size-halfthird: $size-third*2.5;
$square: 7%;
$small-square: 4%;
$xsmall-square: 2%;


HTML {
height: 100%;
}

BODY {
  background: 
    linear-gradient(to right top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) 0 $size-halfthird,
    linear-gradient(to left top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) 0 $size-halfthird,
    linear-gradient(to right bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) 0 $size-halfthird,
    linear-gradient(to left bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) 0 $size-halfthird,
    
    linear-gradient(to right top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
    ) 0 -#{$size-halfthird},
    linear-gradient(to left top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) 0 -#{$size-halfthird},
    linear-gradient(to right bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) 0 -#{$size-halfthird},
    linear-gradient(to left bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) 0 -#{$size-halfthird},
    
    linear-gradient(to right top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) -#{$size-halfthird} 0,
    linear-gradient(to left top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) -#{$size-halfthird} 0,
    linear-gradient(to right bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) -#{$size-halfthird} 0,
    linear-gradient(to left bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) -#{$size-halfthird} 0,
    
    linear-gradient(to right top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-halfthird 0,
    linear-gradient(to left top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-halfthird 0,
    linear-gradient(to right bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-halfthird 0,
    linear-gradient(to left bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-halfthird 0,
 
    /*---------------*/
    
    linear-gradient(to right top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-half $size-third,
    linear-gradient(to left top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-half $size-third,
    linear-gradient(to right bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-half $size-third,
    linear-gradient(to left bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-half $size-third,
    
    linear-gradient(to right top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-half $size-third*2,
    linear-gradient(to left top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-half $size-third*2,
    linear-gradient(to right bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-half $size-third*2,
    linear-gradient(to left bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-half $size-third*2,
    
    linear-gradient(to right top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-third $size-half,
    linear-gradient(to left top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-third $size-half,
    linear-gradient(to right bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-third $size-half,
    linear-gradient(to left bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-third $size-half,
    
    linear-gradient(to right top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-third*2 $size-half,
    linear-gradient(to left top,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-third*2 $size-half,
    linear-gradient(to right bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-third*2 $size-half,
    linear-gradient(to left bottom,
      $fig-1-color $xsmall-square,
      $fig-1-color-t $xsmall-square
      ) $size-third*2 $size-half,
    
    linear-gradient(to right top,
      $color-4 $xsmall-square,
      $color-4-t $xsmall-square
      ) $size-half 0,
    linear-gradient(to left top,
      $color-4 $xsmall-square,
      $color-4-t $xsmall-square
      ) $size-half 0,
    linear-gradient(to right bottom,
      $color-4 $xsmall-square,
      $color-4-t $xsmall-square
      ) $size-half 0,
    linear-gradient(to left bottom,
      $color-4 $xsmall-square,
      $color-4-t $xsmall-square
      ) $size-half 0,
    
    linear-gradient(to right top,
      $color-4 $xsmall-square,
      $color-4-t $xsmall-square
      ) 0 $size-half,
    linear-gradient(to left top,
      $color-4 $xsmall-square,
      $color-4-t $xsmall-square
      ) 0 $size-half,
    linear-gradient(to right bottom,
      $color-4 $xsmall-square,
      $color-4-t $xsmall-square
      ) 0 $size-half,
    linear-gradient(to left bottom,
      $color-4 $xsmall-square,
      $color-5-t $xsmall-square
      ) 0 $size-half,
    
    radial-gradient(circle,
      $color-1-t 52%,
      $color-1 54%,  $color-1 55.5%,
      $color-1-t 55.5%, $color-1-t 65%,
      $color-1 66%,  $color-1 69%,
      $color-1-t 75%) 0 0,
    radial-gradient(circle,
      $color-1-t 52%,
      $color-1 54%,  $color-1 55.5%,
      $color-1-t 55.5%, $color-1-t 65%,
      $color-1 66%,  $color-1 69%,
      $color-1-t 75%) $size/2 $size/2,
    
    
    linear-gradient(to right top,
      $color-2 $xsmall-square,
      $color-2-t $xsmall-square
      ) 0 0,
    linear-gradient(to left top,
      $color-2 $xsmall-square,
      $color-2-t $xsmall-square
      ) 0 0,
    linear-gradient(to right bottom,
      $color-2 $xsmall-square,
      $color-2-t $xsmall-square
      ) 0 0,
    linear-gradient(to left bottom,
      $color-2 $xsmall-square,
      $color-2-t $xsmall-square
      ) 0 0,
    
    linear-gradient(to right top,
      $color-2 $xsmall-square,
      $color-2-t $xsmall-square
      ) $size-half $size-half,
    linear-gradient(to left top,
      $color-2 $xsmall-square,
      $color-2-t $xsmall-square
      ) $size-half $size-half,
    linear-gradient(to right bottom,
      $color-2 $xsmall-square,
      $color-2-t $xsmall-square
      ) $size-half $size-half,
    linear-gradient(to left bottom,
      $color-2 $xsmall-square,
      $color-2-t $xsmall-square
      ) $size-half $size-half,

    linear-gradient(to right top,
      $color-4 $small-square,
      $color-4-t $small-square
      ) 0 0,
    linear-gradient(to left top,
      $color-4 $small-square,
      $color-4-t $small-square
      ) 0 0,
    linear-gradient(to right bottom,
      $color-4 $small-square,
      $color-4-t $small-square
      ) 0 0,
    linear-gradient(to left bottom,
      $color-4 $small-square,
      $color-4-t $small-square
      ) 0 0,
    
    linear-gradient(to right top,
      $color-4 $small-square,
      $color-4-t $small-square
      ) $size-half $size-half,
    linear-gradient(to left top,
      $color-4 $small-square,
      $color-4-t $small-square
      ) $size-half $size-half,
    linear-gradient(to right bottom,
      $color-4 $small-square,
      $color-4-t $small-square
      ) $size-half $size-half,
    linear-gradient(to left bottom,
      $color-4 $small-square,
      $color-4-t $small-square
      ) $size-half $size-half,
    
    linear-gradient(to right top,
      $color-3 $square,
      $color-3-t $square
      ) 0 0,
    linear-gradient(to left top,
      $color-3 $square,
      $color-3-t $square
      ) 0 0,
    linear-gradient(to right bottom,
      $color-3 $square,
      $color-3-t $square
      ) 0 0,
    linear-gradient(to left bottom,
      $color-3 $square,
      $color-3-t $square
      ) 0 0,
    
    linear-gradient(to right top,
      $color-3 $square,
      $color-3-t $square
      ) $size-half $size-half,
    linear-gradient(to left top,
      $color-3 $square,
      $color-3-t $square
      ) $size-half $size-half,
    linear-gradient(to right bottom,
      $color-3 $square,
      $color-3-t $square
      ) $size-half $size-half,
    linear-gradient(to left bottom,
      $color-3 $square,
      $color-3-t $square
      ) $size-half $size-half
    ;
  background-size: $size $size;
  background-color: $color-5;
  }
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