Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource

JavaScript

Babel is required to process package imports. If you need a different preprocessor remove all packages first.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Behavior

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                - const one = 'Loading'
- const two = 'Wait...'
.scene(style=`--hue: ${260}; --saturation: ${Math.floor(Math.random() * 50 + 1) + 50}; --lightness: ${Math.floor(Math.random() * 25) + 50}`)
  .word
    - for (const [index, letter] of one.split('').entries())
      .letter__wrap(style=`--index: ${index}`)
        .letter(data-letter=letter)
          span.letter__panel(aria-hidden='true')= letter
          span.letter__panel(aria-hidden='true')= two[index]
          span.letter__panel(aria-hidden='true')= letter
          span.letter__panel(aria-hidden='true')= two[index]
          span.letter__panel

              
            
!

CSS

              
                *
  box-sizing border-box
  transition all .15s ease 0s

:root
  --movement 0.85
  --stop 0.5
  --duration calc((var(--movement) * (1 / var(--stop))))
  --stagger 0.1125
  --perspective 500
  --size 50
  --ease cubic-bezier(1, -0.52, .26, .89)
  --bg hsl(0, 0%, 90%)
  --panel hsl(0, 0%, 100%)
  --color hsl(0, 0%, 5%)
  --hue 23
  --saturation 100
  --lightness 55

  @media(prefers-color-scheme dark)
    --bg hsl(0, 0%, 10%)
    --panel hsl(0, 0%, 0%)
    --color hsl(0, 0%, 95%)

body
  align-items center
  background var(--bg)
  display flex
  justify-content center
  min-height 100vh
  overflow hidden

.scene
  perspective calc(var(--perspective) * 1px)

.word
  display flex
  transform translate(calc(var(--size) * 0.7px), 0) rotateX(-30deg) rotateY(45deg)
  transform-style preserve-3d

.letter__wrap
  animation jump calc(var(--duration) * 1s) calc((var(--stagger, 0) * var(--index, 0)) * 1s) var(--ease) infinite
  transform-origin bottom center
  transform-style preserve-3d

  .letter
    animation rotate calc(var(--duration) * 4s) calc((var(--stagger, 0) * var(--index, 0)) * 1s) ease infinite


.letter
  color var(--color)
  font-family -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif
  font-size 2rem
  font-weight bold
  height calc(var(--size) * 1px)
  margin-right calc(var(--size) * 0.2px)
  position relative
  text-transform uppercase
  transform-style preserve-3d
  width calc(var(--size) * 1px)

  &__panel
    align-items center
    background var(--panel)
    border '5px hsl(%s, %s, %s) solid' % (var(--hue) calc(var(--saturation) * 1%) calc(var(--lightness) * 1%))
    display flex
    height calc(var(--size) * 1px)
    justify-content center
    left 50%
    position absolute
    top 50%
    width calc(var(--size) * 1px)

    &:nth-of-type(1)
      transform translate3d(-50%, -50%, 0) translate3d(0, 0, calc(var(--size) * 0.5px))
    &:nth-of-type(2)
      transform translate3d(-50%, -50%, 0) rotateX(90deg) translate3d(0, 0, calc(var(--size) * 0.5px))
    &:nth-of-type(3)
      transform translate3d(-50%, -50%, 0) rotateX(180deg) translate3d(0, 0, calc(var(--size) * 0.5px))
    &:nth-of-type(4)
      transform translate3d(-50%, -50%, 0) rotateX(-90deg) translate3d(0, 0, calc(var(--size) * 0.5px))
    &:nth-of-type(5)
      transform translate3d(-50%, -50%, 0) rotateY(-90deg) translate3d(0, 0, calc(var(--size) * 0.5px))

@keyframes rotate
  0%, 30.625%
    transform rotateX(0deg)
  33.125%, 81.625%
    transform rotateX(90deg)
  83.125%, 100%
    transform rotateX(180deg)

@keyframes jump
  0%, 50%, 100%
    transform scaleX(1) scaleY(1) translate(0, 0)
  15%
    transform scaleX(1.2) scaleY(0.8) translate(0, 0)
  25%
    transform scaleX(0.9) scaleY(1.1) translate(0, -100%)
              
            
!

JS

              
                // Flippy Loader
// A progression from https://codepen.io/jh3y/pen/VwLQZOY
// after it made the CodePen Spark 🙌
              
            
!
999px

Console