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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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Vendor Prefixing

About Vendor Prefixing

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JavaScript

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Babel includes JSX processing.

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HTML 

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

CSS 

              
                // #divtober 24: Juicy
// a.singlediv.com/divtober2020

black(alpha)
  rgba(0,0,0,alpha)

white(alpha)
  rgba(255,255,255,alpha)

body
  min-height: 200px
  height: 100vh
  position: relative
  background-color: honeydew

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

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

#juicy
  font-size: 20px
  box-sizing: border-box
  width: 6.2em
  height: 7em
  margin-left: -(@width/2)
  margin-top: -(@height/2)
  background-repeat: no-repeat
  background-image: radial-gradient(ellipse at 50% 100%, white(.8) 20%, white(0) 21%),
                    linear-gradient(white(.7), white(.7)),
                    linear-gradient(white(.7), white(.7)),
                    radial-gradient(ellipse, white(.8) 23%, white(0) 25%),
                    radial-gradient(circle, wheat 50%, alpha(wheat,0) 51%),
                    radial-gradient(circle, wheat 50%, alpha(wheat,0) 51%),
                    radial-gradient(circle, wheat 50%, alpha(wheat,0) 51%),
                    radial-gradient(circle, wheat 50%, alpha(wheat,0) 51%),
                    radial-gradient(circle, black(.4) 50%, black(0) 51%),
                    radial-gradient(circle, black(.4) 50%, black(0) 51%),
                    radial-gradient(circle, black(.4) 50%, black(0) 51%),
                    radial-gradient(circle, black(.4) 50%, black(0) 51%),
                    radial-gradient(circle, black(.4) 50%, black(0) 51%),
                    radial-gradient(circle, black(.4) 50%, black(0) 51%),
                    linear-gradient(to top, alpha(olive,.7) 85%, #ccc 85%)
  background-size: 120% 8%,
                   5% 1.5%,
                   5% 1.5%,
                   80% 12%,
                   .3em .3em,
                   .3em .3em,
                   .3em .3em,
                   .3em .3em,
                   .3em .3em,
                   .3em .3em,
                   .3em .3em,
                   .3em .3em,
                   .3em .3em,
                   .3em .3em,
                   100% 100%
  background-position: 50% 100%,
                       25% 100%,
                       74% 100%,
                       95% 3%,
                       20% 30%,
                       80% 45%,
                       72% 58%,
                       30% 88%,
                       14% 45%,
                       70% 30%,
                       30% 70%,
                       17% 94%,
                       50% 95%,
                       80% 90%,
                       0 0
  border-radius: 1em
  border: .1em solid olive
  box-shadow: inset 0 -1.05em 0 -.8em black(.15),
              inset 0 .5em 0 -.2em black(.1),
              inset -.3em 0 0 black(.12),
              inset -.7em 0 0 white(.75),
              inset  .3em 0 0 black(.12),
              inset  .7em 0 0 white(.75)

  &:after
    width: 1.3em
    height: 4.5em
    left: 2.2em
    bottom: .75em
    background-color: yellowgreen
    background-repeat: no-repeat
    background-image: radial-gradient(circle, white(.5) 50%, white(0) 51%),
                      radial-gradient(circle, white(.5) 50%, white(0) 51%),
                      radial-gradient(circle, white(.5) 50%, white(0) 51%),
                      radial-gradient(circle, white(.5) 50%, white(0) 51%),
                      radial-gradient(circle, white 50%, white(0) 51%),
                      radial-gradient(circle, white 50%, white(0) 51%),
                      radial-gradient(circle, black 50%, black(0) 51%),
                      radial-gradient(circle, black 50%, black(0) 51%)
    background-size: .3em .3em
    background-position: 87% 15%,
                         95% 25%,
                         80% 60%,
                         90% 90%,
                         45% 50%,
                         45% 80%,
                          3% 20%,
                          5% 60%
    border-radius: 1em
    border: .1em solid darken(yellowgreen,15)
    box-shadow: inset .4em 0 0 alpha(olivedrab,.8),
                inset .8em 0 0 alpha(olivedrab,.5)
    transform: rotate(-15deg)

  &:before
    box-sizing: border-box
    width: 90%
    height: .7em
    left: 5%
    top: -.8em
    background-repeat: repeat-x, no-repeat
    background-image: linear-gradient(to right, black(.5) 50%,
                                                black(.25) 50%),
                      linear-gradient(to right, lighten(darkgreen,2)   15%,
                                                lighten(forestgreen,3) 15%,
                                                lighten(forestgreen,3) 70%,
                                                darkgreen              70%,
                                                darkgreen              90%,
                                                lighten(darkgreen,5)   90%)
    background-size: 10% 65%, 100% 100%
    background-position: 0 100%, 0 0
    border-radius: .2em
    box-shadow: 0 .42em 0 -.25em #ccc,
                0  .3em 0 -.15em olive
    border: .1em solid darken(darkgreen,10)
!

JS 

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

Console