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HTML

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CSS

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CSS Base

About CSS Base

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <div id="letter"></div>
!

CSS 

              
                // #divtober 28: Letter
// a.singlediv.com/divtober2020

body
  min-height: 400px
  height: 100vh
  position: relative
  background-color: peru
  overflow: hidden

div
  position: absolute
  left: 50%
  top: 50%

  &:before,
  &:after
    display: block
    content: ''
    position: absolute
    
  @media (max-width: 400px)
    &:not(.no-scale)
      transform: scale(.8)

#letter
  font-size: 8px
  width: 94%
  max-width: 600px
  height: 94%
  max-height: 500px
  transform: translateX(-50%)
  top: auto
  bottom: 0
  background-color: floralwhite
  background-repeat: no-repeat
  background-image: repeating-linear-gradient(to right, darkgrey,
                                                        darkgrey .3em,
                                                        transparent .3em,
                                                        transparent 5em),
                    linear-gradient(136deg, transparent 49.5%,
                                            darkgrey 50%,
                                            darkgrey 53%,
                                            transparent 53.5%),
                    linear-gradient( 44deg, transparent 46.5%,
                                            darkgrey 47%,
                                            darkgrey 50%,
                                            transparent 50.5%),
                    repeating-linear-gradient(to right, darkgrey,
                                                        darkgrey .3em,
                                                        transparent .3em,
                                                        transparent 5em),
                    linear-gradient( 45deg, transparent 44%,
                                            darkgrey 44.5%,
                                            darkgrey 47%,
                                            transparent 47.5%),
                    linear-gradient( 45deg, transparent 47%,
                                            darkgrey 47.5%,
                                            darkgrey 50%,
                                            transparent 50.5%),
                    linear-gradient(136deg, transparent 32%,
                                            darkgrey 32.5%,
                                            darkgrey 36.5%,
                                            transparent 37%),
                    linear-gradient(135deg, transparent 63.5%,
                                            darkgrey 64%,
                                            darkgrey 68%,
                                            transparent 68.5%),
                    linear-gradient(136deg, transparent 46.5%,
                                            darkgrey 47%,
                                            darkgrey 50%,
                                            transparent 50.5%),
                    linear-gradient( 44deg, transparent 49.5%,
                                            darkgrey 50%,
                                            darkgrey 53%,
                                            transparent 53.5%),
                    radial-gradient(circle, peru 60%, alpha(peru,0) 61%),
                    radial-gradient(circle, peru 60%, alpha(peru,0) 61%),
                    linear-gradient(hotpink, hotpink),
                    repeating-linear-gradient(to bottom, paleturquoise,
                                                         paleturquoise .25em,
                                                         transparent .25em,
                                                         transparent 2.5em)
  background-size: 10.30em 5em,
                    5.15em 5em,
                    5.15em 5em,
                   10.30em 5em,
                    6.18em 5em,
                    6.18em 5em,
                    5.15em 2.4em,
                    5.15em 2.5em,
                    5.15em 5em,
                    5.15em 5em,
                   3em 3em,
                   3em 3em,
                   .2em 100%,
                   100% 80%
  background-position: right 14em    top 10em,
                       right 19.15em  top 5em,
                       right 14.01em top 5em,
                       right 14em    top 20em,
                       right 18.1em  top 15em,
                       right 13.4em  top 15em,
                       right 19.15em top 17.6em,
                       right 14.01em top 15em,
                       right 14.01em top 25em,
                       right 19.15em top 25em,
                       3.4em 29%,
                       left 3.4em bottom -1.5em,
                       10em 0,
                       0 100%

  &:before
    width: 6.3em
    height: 15em
    right: 3.5em
    top: 2em
    background-repeat: no-repeat
    background-image: repeating-linear-gradient(to right, darkgrey,
                                                          darkgrey .3em,
                                                          transparent .3em,
                                                          transparent 3em),
                      linear-gradient(136deg, transparent 49.5%,
                                              darkgrey 50%,
                                              darkgrey 54.5%,
                                              transparent 55%),
                      linear-gradient( 44deg, transparent 45%,
                                              darkgrey 45.5%,
                                              darkgrey 50%,
                                              transparent 50.5%),
                      repeating-linear-gradient(to right, darkgrey,
                                                          darkgrey .3em,
                                                          transparent .3em,
                                                          transparent 3em),
                      linear-gradient( 45deg, transparent 44%,
                                              darkgrey 44.5%,
                                              darkgrey 48.5%,
                                              transparent 49%),
                      linear-gradient( 45deg, transparent 47%,
                                              darkgrey 47.5%,
                                              darkgrey 51.5%,
                                              transparent 52%),
                      linear-gradient(136deg, transparent 32%,
                                              darkgrey 32.5%,
                                              darkgrey 38.5%,
                                              transparent 39%),
                      linear-gradient(135deg, transparent 61%,
                                              darkgrey 61.5%,
                                              darkgrey 68%,
                                              transparent 68.5%),
                      linear-gradient(136deg, transparent 45%,
                                              darkgrey 45.5%,
                                              darkgrey 50%,
                                              transparent 50.5%),
                      linear-gradient( 44deg, transparent 49.5%,
                                              darkgrey 50%,
                                              darkgrey 54.5%,
                                              transparent 55%)
    background-size: 100% 3em,
                     50%  3em,
                     50%  3em,
                     100% 3em,
                     60%  3em,
                     60%  3em,
                     50%  1.5em,
                     50%  1.5em,
                     50%  3em,
                     50%  3em
    background-position: 0  3em,
                         0 0,
                         100% 0,
                         0  9em,
                         0 6em,
                         2.8em 6em,
                         0 7.6em,
                         100% 6em,
                         100% 12em,
                         0 12em
    transform: rotate(-15deg)

  &:after
    width: 4.3em
    height: 10em
    right: 4.5em
    top: 18em
    background-repeat: no-repeat
    background-image: repeating-linear-gradient(to right, darkgrey,
                                                          darkgrey .3em,
                                                          transparent .3em,
                                                          transparent 2em),
                      linear-gradient(136deg, transparent 49%,
                                              darkgrey 49.5%,
                                              darkgrey 56.5%,
                                              transparent 57%),
                      linear-gradient( 44deg, transparent 42.5%,
                                              darkgrey 43%,
                                              darkgrey 50%,
                                              transparent 50.5%),
                      repeating-linear-gradient(to right, darkgrey,
                                                          darkgrey .3em,
                                                          transparent .3em,
                                                          transparent 2em),
                      linear-gradient( 45deg, transparent 44%,
                                              darkgrey 44.5%,
                                              darkgrey 50.5%,
                                              transparent 51%),
                      linear-gradient( 45deg, transparent 44%,
                                              darkgrey 44.5%,
                                              darkgrey 51%,
                                              transparent 51.5%),
                      linear-gradient(136deg, transparent 31%,
                                              darkgrey 31.5%,
                                              darkgrey 42%,
                                              transparent 42.5%),
                      linear-gradient(135deg, transparent 57%,
                                              darkgrey 57.5%,
                                              darkgrey 68%,
                                              transparent 68.5%),
                      linear-gradient(136deg, transparent 42.5%,
                                              darkgrey 43%,
                                              darkgrey 50%,
                                              transparent 50.5%),
                      linear-gradient( 44deg, transparent 49%,
                                              darkgrey 49.5%,
                                              darkgrey 56.5%,
                                              transparent 57%)
    background-size: 100% 2em,
                     50%  2em,
                     50%  2em,
                     100% 2em,
                     60%  2em,
                     60%  2em,
                     50%  1em,
                     50%  1em,
                     50%  2em,
                     50%  2em
    background-position: 0 2em,
                         0 0,
                         100% 0,
                         0 6em,
                         0 4em,
                         2em 4em,
                         0 5em,
                         100% 4em,
                         100% 8em,
                         0 8em
    transform: rotate(-30deg)
!

JS 

              
                // @lynnandtonic
// a.singlediv.com
!
999px

Console