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HTML

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Insecure Resource

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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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Vendor Prefixing

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                .keyboard
  .row.row-1
    .key{'data-key' => '96'}
      .top &#126;
      .bottom &#96;
    .key{'data-key' => '49'}
      .top !
      .bottom 1
    .key{'data-key' => '50'}
      .top @
      .bottom 2
    .key{'data-key' => '51'}
      .top #
      .bottom 3
    .key{'data-key' => '52'}
      .top $
      .bottom 4
    .key{'data-key' => '53'}
      .top %
      .bottom 5
    .key{'data-key' => '54'}
      .top ^
      .bottom 6
    .key{'data-key' => '55'}
      .top &
      .bottom 7
    .key{'data-key' => '56'}
      .top *
      .bottom 8
    .key{'data-key' => '57'}
      .top (
      .bottom 9
    .key{'data-key' => '48'}
      .top )
      .bottom 0
    .key{'data-key' => '45'}
      .top.t-higher _
      .bottom -
    .key{'data-key' => '61'}
      .top +
      .bottom.b-closer =
    .key.key-special-r.key-delete{'data-key' => '8'}
      %span delete
  .row.row-2
    .key.key-tab.key-special-l
      %span tab
    .key{'data-key' => '113'} Q
    .key{'data-key' => '119'} W
    .key{'data-key' => '101'} E
    .key{'data-key' => '114'} R
    .key{'data-key' => '116'} T
    .key{'data-key' => '121'} Y
    .key{'data-key' => '117'} U
    .key{'data-key' => '105'} I
    .key{'data-key' => '111'} O
    .key{'data-key' => '112'} P
    .key{'data-key' => '91'}
      .top {
      .bottom [
    .key{'data-key' => '93'}
      .top }
      .bottom ]
    .key{'data-key' => '92'}
      .top &#124;
      .bottom \
  .row.row-3
    .key.key-caps.key-special-l
      %span caps lock
    .key{'data-key' => '97'} A
    .key{'data-key' => '115'} S
    .key{'data-key' => '100'} D
    .key{'data-key' => '102'} F
    .key{'data-key' => '103'} G
    .key{'data-key' => '104'} H
    .key{'data-key' => '106'} J
    .key{'data-key' => '107'} K
    .key{'data-key' => '108'} L
    .key{'data-key' => '59'}
      .top.t-higher :
      .bottom ;
    .key{'data-key' => '39'}
      .top "
      .bottom '
    .key.key-return.key-special-r{'data-key' => '13'}
      %span return
  .row.row-4
    .key.key-shift-l.key-special-l
      %span shift
    .key{'data-key' => '122'} Z
    .key{'data-key' => '120'} X
    .key{'data-key' => '99'} C
    .key{'data-key' => '118'} V
    .key{'data-key' => '98'} B
    .key{'data-key' => '110'} N
    .key{'data-key' => '109'} M
    .key{'data-key' => '44'}
      .top <
      .bottom ,
    .key{'data-key' => '46'}
      .top >
      .bottom .
    .key{'data-key' => '47'}
      .top ?
      .bottom &#47;
    .key.key-shift-r.key-special-r{'data-key' => '16'}
      %span shift
  .row.row-5
    .key.key-narrow.key-special-l
      %span fn
    .key.key-narrow.key-special-l
      %span control
    .key.key-narrow.key-special-l
      %span option
    .key.key-command-l.key-special-l
      .command-symbol-r &#8984;
      %span command
    .key.key-space{'data-key' => '32'}
    .key.key-command-r.key-special-r
      .command-symbol-l &#8984;
      %span command
    .key.key-narrow.key-special-r
      %span option
    .key.key-arrow.key-arrow-l
      %svg
        %polygon{ style:'fill:#6E6F71', points:"3.9,4.7 0,2.4 3.9,0"}
    .key.key-arrow.key-arrow-u
      %svg
        %polygon{ style:'fill:#6E6F71', points:"0,3.9 2.4,0 4.7,3.9"}
    .key.key-arrow.key-arrow-d
      %svg
        %polygon{ style:'fill:#6E6F71', points:"4.7,0 2.4,3.9 0,0"}
    .key.key-arrow.key-arrow-r
      %svg
        %polygon{ style:'fill:#6E6F71', points:"0,0 3.9,2.4 0,4.7"}
!

CSS 

              
                @import url(https://fonts.googleapis.com/css?family=Varela+Round)

.keyboard
  background-image: linear-gradient(#cccdce, #e1e1e2 7%, #cdcfcf)
  border: 1px solid rgba(0,0,0,.07)
  border-radius: 1em
  box-shadow: inset 0 0 5px rgba(255,255,255,.26), 0 1px 0 #8b8e90, 0 2px 0 #a6a9ab, 0 3px 0 #919191, 0 4px 5px rgba(0,0,0,.5)
  margin: 50px auto 0
  padding: 3em 1em 1em 
  width: 51em
  
.row
  margin: 0 auto .5em
  position: relative
  &:last-child
    margin-bottom: 0
  
.key
  background-image: linear-gradient(#edeeef, #f6f7f8)
  border-bottom: .1em solid #dbdbdc
  border-top: .1em solid #fff
  border-radius: 0.25em
  box-shadow: 0 1px 3px #67696e, inset 0 0 5px #fff
  box-sizing: border-box
  display: inline-block
  color: #6e6f71
  font-family: varela round
  height: 3em
  margin-right: 0.25em
  overflow: hidden
  padding-top: 1em
  position: relative
  text-align: center
  text-shadow: 0 1px 0 #fff  
  width: 3em
  z-index: 100
  &:last-child
    margin-right: 0

//Gradient borders
.key:before,
.key:after
  background-image: linear-gradient(#fff, #dbdbdc)
  bottom: 0
  content: ""
  position: absolute
  top: 0
  width: .1em
  z-index: 200

.key:before
  left: 0
  
.key:after 
  right: 0
  
// Special Keys    
.key-tab
  width: 5em
.key-caps
  width: 5.5em
.key-return
  width: 6em
.key-shift-l
  width: 7.1em
.key-shift-r
  width: 7.9em
.key-delete
  width: 5em
.key-narrow
  width: 2.75em
.key-command-l,
.key-command-r
  width: 4.5em  
.key-space
  width: 17em
  
//Alignments
.key-special-l
  padding-left: .5em
  padding-top: 1.5em
  text-align: left 
.key-special-r
  padding-right: .5em
  padding-top: 1.5em
  text-align: right
.command-symbol-r
  margin: -1.5em 0.25em 0.25em 0
  text-align: right
.command-symbol-l
  margin: -1.5em 0 0.25em 0.25em
  text-align: left
  
//Type sizing
span
  font-size: 55%
.top,
.bottom
  font-size: 80%
.command-symbol-l,
.command-symbol-r
  font-size: 90%
 
//Multi-label keys
.top  
  margin-top: -.75em
.bottom
  margin-top: .25em
.t-higher
  margin-top: -1em
.b-closer
  margin-top: 0
  
//Arrow keys
.key-arrow
  height: 1.35em
  padding: 0
.key-arrow-u
  position: absolute
svg
  width: 0.25em
  margin: 0.5em auto
  
//Active
.is-active
  background-image: linear-gradient(#3092d9, #50abe3)
  border-bottom-color: #4998c9
  border-top-color: #349fec
  box-shadow: 0 1px 3px rgba(15,42,60,.8), inset 0 0 3px #6bbaf0
  color: #fff
  text-shadow: 0 1px 0 #205f8c
  cursor: pointer
  
.is-active:before,
.is-active:after
  background-image: linear-gradient(#349fec, #4998c9)
!

JS 

              
                # JS concept contributed by Nick Walsh 
# https://twitter.com/nickawalsh
$ ->
  $(window).on 'keypress', (e) ->
    $('.key').removeClass('is-active')
    $("[data-key=#{e.which}]").addClass('is-active')
!
999px

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