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HTML

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HTML preprocessors can make writing HTML more powerful or convenient. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug.

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Adding Classes

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About the <head>

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. If you need things in the <head> of the document, put that code here.

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Insecure Resource

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CSS

About CSS Preprocessors

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

It's a common practice to apply CSS to a page that styles elements such that they are consistent across all browsers. We offer two of the most popular choices: normalize.css and a reset. Or, choose Neither and nothing will be applied.

Vendor Prefixing

About Vendor Prefixing

To get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz-.

We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side).

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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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Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

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HTML 

              
                #codepen
  #about
    h1 Neuromorphic Keyboard
    h3 Pure <kbd>PUG</kbd> &amp; <kbd>SCSS + Grid</kbd>
    h6
      a(
        href="https://codepen.io/haz3y0ne",
        title="See the rest of my work on CodePen.io :)",
        target="_blank"
      ) Hazey &lt;/&gt;
  #keyboard
    button.key `
    button.key 1
    button.key 2
    button.key 3
    button.key 4
    button.key 5
    button.key 6
    button.key 7
    button.key 8
    button.key 9
    button.key 0
    button.key -
    button.key =
    button.key-md Back
    button.key-sm Tab
    button.key Q
    button.key W
    button.key E
    button.key R
    button.key T
    button.key Y
    button.key U
    button.key I
    button.key O
    button.key P
    button.key [
    button.key ]
    button.key-sm \\
    button.key-sm Caps
    button.key A
    button.key S
    button.key D
    button.key F
    button.key G
    button.key H
    button.key J
    button.key K
    button.key L
    button.key ;
    button.key ''
    button.key-md Enter
    button.key-md Shift
    button.key Z
    button.key X
    button.key C
    button.key V
    button.key B
    button.key N
    button.key M
    button.key ,
    button.key .
    button.key /
    button.key-md Shift
    button.key Ctrl
    button.key Fn
    //- The Windows logo is a registered trademark of Microsoft.
    button.key
      i.fa-brands.fa-windows
    button.key Alt
    button.key-xlg
    button.key Alt
    button.key Menu
    button.key Ctrl
    #arrows
      button.key.left &larr;
      button.key.down &darr;
      button.key.up &uarr;
      button.key.right &rarr;
!

CSS 

              
                @import url("https://fonts.googleapis.com/css2?family=Fira+Code&family=Mynerve&family=Pacifico&family=Source+Sans+Pro&display=swap");

* {
  box-sizing: border-box;
  transition: all 0.3s ease-out;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  background-image: linear-gradient(to top, #fad0c4 0%, #ffd1ff 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100vw;
}

#codepen {
  display: grid;
  grid-template-rows: 30cqh 60cqh;
  align-items: center;
  justify-content: center;
  font-family: "Source Sans Pro", sans-serif;
  width: 90%;
  height: 100%;

  #about {
    text-align: center;
    line-height: 1.2;
  }

  #keyboard {
    display: grid;
    grid-template-rows: repeat(5, 5fr);
    grid-template-columns: repeat(16, 16fr);
    border-radius: 10px;
    border: 2px solid rgba(230, 230, 230, 0.3);
    padding: 1%;
    box-shadow: -4px -4px 18px rgba(255, 255, 255, 0.8),
      4px 4px 22px rgba(0, 0, 0, 0.3),
      0px 0px 18px rgba(150, 150, 150, 0.15) inset;

    .key {
      grid-row: span 1;
      grid-column: span 1;
    }

    .key-sm,
    .key-md,
    .key-lg,
    .key-xlg {
      grid-row: span 1;
    }

    .key-sm {
      grid-column: span 2;
    }

    .key-md {
      grid-column: span 3;
    }

    .key-lg {
      grid-column: span 4;
    }

    .key-xlg {
      grid-column: span 6;
    }

    #arrows {
      width: 100%;
      grid-column: span 3;
      display: grid;
      grid-template-rows: repeat(2, 2fr);
      grid-template-columns: repeat(3, 3fr);

      .left,
      .down,
      .right {
        grid-row: 2;
      }

      .left {
        grid-column: 1;
      }

      .down {
        grid-column: 2;
      }

      .right {
        grid-column: 3;
      }

      .up {
        grid-column: 2;
        grid-row: 1;
      }
    }
  }

  button {
    font-family: "Source Sans Pro", sans-serif;
    backdrop-filter: blur(30px);
    border: 0;
    margin: 5px;
    border-radius: 10px;
    background: #fad0c4;
    box-shadow: 5px 5px 6px #dab5ab, -4px -4px 6px rgba(255, 255, 255, 0.4);
    color: transparent;
    font-size: 1.8ch;
    -webkit-background-clip: text;
    -moz-background-clip: text;
    background-clip: text;
    text-shadow: -1px -1px 2px rgba(240, 240, 240, 0.4),
      1px 1px 0px rgba(0, 0, 0, 0.15);

    &:hover {
      box-shadow: 5px 5px 6px rgba(10, 10, 10, 0.4),
        -5px -5px 6px rgba(255, 255, 255, 0.5);
    }

    &:active {
      box-shadow: -1px -1px 6px rgba(10, 10, 10, 0.1),
        1px 1px 6px rgba(255, 255, 255, 0.1);
    }
  }
}

h6 {
  font-family: "Fira Code", monospace;

  a {
    text-decoration: none;
    font-size: 2.5ch;
    color: #111;
    opacity: 0.5;
    text-shadow: 0px 0px 4px rgba(0, 0, 0, 0.4);

    &:hover {
      opacity: 1;
    }
  }
}

kbd {
  background-color: rgba(0, 0, 0, 0.4);
  border-radius: 2px;
  padding: 3px;
  color: #fff;
}
!

JS
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999px

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