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HTML

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CSS

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CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

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CSS Base

About CSS Base

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JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

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Babel includes JSX processing.

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Packages

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HTML 

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

CSS 

              
                .haskell {
  width: 380px;
  height: 288px;
  
  position: relative;
  left: 200px;
  top: 200px;
  
  color: orange;
  
  background:
    /* black chevron */
    /* upper part */
/*     linear-gradient(
      237.5deg,
      transparent 77px,
      #101c24 77px,
      #101c24 129px,
      transparent 129px
    ) 0 0, */
    /* lower part */
/*     linear-gradient(
      122.5deg,
      transparent 80px,
      #101c24 80px,
      #101c24 132px,
      transparent 132px
    ) 0 144px, */
    /* lambda */
    /* upper part */
/*     linear-gradient(
      237.5deg,
      transparent 77px,
      currentColor 77px,
      currentColor 129px,
      transparent 129px
    ) 85px 0, */
    /* lower left part */
/*     linear-gradient(
      122.5deg,
      transparent 80px,
      currentColor 80px,
      currentColor 132px,
      transparent 132px
    ) 85px 144px, */
    /* lower right part */
/*     linear-gradient(
      237.5deg,
      transparent 77px,
      currentColor 77px,
      currentColor 129px,
      white 129px
    ) 176px 144px; */
    
    /* white spacer */
    /* upper part */
/*     linear-gradient(
      237.5deg,
      transparent 77px,
      white 77px,
      white 129px,
      transparent 129px
    ) 110px 0, */
    /* lower part */
/*     linear-gradient(
      237.5deg,
      transparent 80px,
      white 80px,
      white 132px,
      transparent 132px
    ) 206px 144px, */
    
    /* black lines */
    /* upper line */
/*     linear-gradient(
      180deg,
      white 80px,
      #101c24 80px,
      #101c24 132px,
      white 132px
    ) 220px 0px, */
    
    /* lower line */
/*     linear-gradient(
      180deg,
      white 12px,
      #101c24 12px,
      #101c24 64px,
      white 64px
    ) 220px 144px; */
  
  background-size: 156px 144px;
  background-repeat: no-repeat;
  
  transform: scale(1.5);
}
!

JS
!
999px

Console