Pen Settings

HTML

About HTML Preprocessors

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.

Learn more · Versions

Adding Classes

In CodePen, whatever you write in the HTML editor is what goes within the <body> tags in a basic HTML5 template. So you don't have access to higher-up elements like the <html> tag. If you want to add classes there that can affect the whole document, this is the place to do it.

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.

!
Insecure Resource

The resource you are linking to is using the 'http' protocol, which may not work when the browser is using https.

CSS

About CSS Preprocessors

CSS preprocessors help make authoring CSS easier. All of them offer things like variables and mixins to provide convenient abstractions.

Learn more · Versions

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).

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

Powered by Algolia
About External Resources

You can apply CSS to your Pen from any stylesheet on the web. Just put a URL to it here and we'll apply it, in the order you have them, before the CSS in the Pen itself.

You can also link to another Pen here (use the .css URL Extension) and we'll pull the CSS from that Pen and include it. If it's using a matching preprocessor, use the appropriate URL Extension and we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

Learn more

+ add another resource

JavaScript

About JavaScript Preprocessors

JavaScript preprocessors can help make authoring JavaScript easier and more convenient.

Learn more · Versions

Babel includes JSX processing.

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.

Powered by Algolia
About External Resources

You can apply a script from anywhere on the web to your Pen. Just put a URL to it here and we'll add it, in the order you have them, before the JavaScript in the Pen itself.

If the script you link to has the file extension of a preprocessor, we'll attempt to process it before applying.

You can also link to another Pen here, and we'll pull the JavaScript from that Pen and include it. If it's using a matching preprocessor, we'll combine the code before preprocessing, so you can use the linked Pen as a true dependency.

Learn more

+ add another resource

Packages

Add Packages

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.

Powered by Algolia
About Packages

Using packages here is powered by esm.sh, which makes packages from npm not only available on a CDN, but prepares them for native JavaScript ESM usage.

All packages are different, so refer to their docs for how they work.

If you're using React / ReactDOM, make sure to turn on Babel for the JSX processing.

Behavior

Auto Save

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 glitches = ['SCROLL FOR GLITCHES', ...new Array(12).fill('GLITCH')]

.container
  - const glitchCount = glitches.length
  - let g = 0
  while g < glitchCount
    .page
      .glitch(data-scroll='out', data-splitting='', class=`glitch--${g}`)= glitches[g]
      - g++
!

CSS 

              
                @import url('https://fonts.googleapis.com/css?family=Exo:800&display=swap')
// <link href="https://fonts.googleapis.com/css?family=Exo:800&display=swap" rel="stylesheet">

:root
  --speed 1
  --delay 0.5
  --font-size 24

/**
 * Jump and translates around a bit
*/
.glitch--0
  animation glitch--0 4s infinite steps(1)

  [data-char='F']
  [data-char='I']
  [data-char='O']
  [data-char='E']
    --x-1 50
    --y-1 50
    animation jump-0 calc(var(--speed) * 1s) infinite steps(1)

  [data-char='O']
    --x-2 -20
    --y-2 -25
    --scale-1 1.3
    --scale-2 0.75
    --speed 2

  [data-char='F']
  [data-char='I']
    --scale-1 1.3
    --scale-2 0.75
    --speed 1.25
    --x-2 15
    --y-2 -40

  [data-char='E']
    --scale-1 0.5
    --scale-2 0.5
    --speed 10
    --x-1 0
    --x-2 0
    --y-1 20
    --y-2 10

@keyframes glitch--0
  0%, 50%, 58%
    transform translate(0, 0) scale(1)
  52%
    transform translate(-25%, 10%) scale(0.85)
  56%
    transform translate(5%, -20%) scale(1.25)

@keyframes jump-0
  0%, 50%, 60%
    transform translate(0, 0) scale(1)
  52%
    transform translate(calc(var(--x-1) * 1%), calc(var(--y-1) * 1%)) scale(var(--scale-1))
  54%
    transform translate(calc(var(--x-2) * 1%), calc(var(--y-2) * 1%)) scale(var(--scale-2))

/**
 * Slide sections of letters about
*/
.glitch--1
  --shift 5
  animation glitch--1 4s infinite steps(1)

  [data-char='G']
  [data-char='L']
  [data-char='T']
  [data-char='H']
    position relative
    &:after
    &:before
      content attr(data-char)
      position absolute
      top 0%
      left 0%
      height 100%
      width 100%
      color white
      -webkit-clip-path var(--clip)
      clip-path var(--clip)
    &:after
      --clip inset(0 0 calc(var(--split) * 1%) 0)
    &:before
      --clip inset(calc((95 - var(--split)) * 1%) 0 0 0)

  [data-char='G']
  [data-char='L']
    &:after
    &:before
      --split 70
      opacity .75
    &:after
      --shift -25
    &:before
      animation glitch--1 5s 1s infinite steps(1) alternate-reverse
      --shift -50

  [data-char='T']
    color transparent
    &:after
    &:before
      --split 60
      animation glitch--1 3s 1s infinite steps(1) alternate-reverse
    &:after
      --shift -25
    &:before
      --shift 10

  [data-char='H']
    color transparent
    &:after
    &:before
      --split 50
      color white
    &:after
      animation drop--1 2s 1s infinite steps(1)

@keyframes glitch--1
  0%, 53%, 57%, 100%
    transform translate(0, 0)
  55%
    transform translate(calc(var(--shift) * 1%), 0)

@keyframes drop--1
  0%, 50%, 60%, 100%
    transform translate(0, 0)
  54%
    transform translate(0, 25%)
  58%
    transform translate(0, -50%)

.glitch--2
  [data-char='G']
    --scale 1.75
    animation scale 4s infinite steps(1)
  [data-char='T']
  [data-char='C']
    animation shrink 5s infinite steps(1), shift 4s infinite steps(1)
  [data-char='L']
  [data-char='I']
    --scale 0.65
    animation scale 5s infinite steps(1)
  [data-char='H']
    animation shift 5s infinite steps(1)

// Let's do the animated clip-path thing
.glitch--3
  [data-char]
    --split 50
    color transparent
    position relative
    animation glitch--3 1.5s infinite ease-in-out alternate-reverse
    &:after
    &:before
      content attr(data-char)
      position absolute
      top 0%
      left 0%
      height 100%
      width 100%
      color white
      -webkit-clip-path var(--clip)
      clip-path var(--clip)
    &:after
      transform translate(calc(var(--shift) * 1%), 0)
      --clip inset(0 0 calc(var(--split) * 1%) 0)
      text-shadow calc(var(--shadow) * 1px) calc(var(--shadow) * 1px) #ff0000
    &:before
      --clip inset(calc((95 - var(--split)) * 1%) 0 0 0)

@keyframes glitch--3
  0%
    --split 20
    --shift 15
    --shadow -2
  5%
    --split 30
    --shift 15
    --shadow -2
  10%
    --split 80
    --shift 10
    --shadow -2
  15%
    --split 55
    --shift 10
    --shadow -2
  20%
  50%
    --split 0
    --shift 0
    --shadow 0
  100%
    --split 0
    --shift 0
    --shadow 0

.glitch--4
  [data-char]
    --delay 0
    --speed 5
    --skew 25
    animation skew 5s infinite steps(1) alternate, shrink calc(var(--speed) * 1s) calc(var(--delay) * 1s) infinite steps(1)

  [data-char='G']
    --speed 4
    --delay 2

  [data-char='T']
  [data-char='C']
    --speed 6
    --delay 1
    transform-origin bottom

  [data-char='I']
    --skew -10
    --speed 10
    --delay 3

.glitch--5
  [data-char]
    position relative
    animation glitch--5 2s infinite alternate, scale 4s -2s infinite steps(1)
    &:after
    &:before
      content attr(data-char)
      transform skew(calc(var(--skew) * 1deg))
      position absolute
      top 0%
      left 0%
      height 100%
      width 100%
      color white
      opacity .75
    &:after
      text-shadow calc(var(--spread) * -1px) calc(var(--spread) * -1px) red
    &:before
      text-shadow calc(var(--spread) * 1px) calc(var(--spread) * 1px) #bada55
  [data-char='I']
    --scale 1.2
  [data-char='C']
    --scale 1.5
  [data-char='H']
    --scale 0.5

@keyframes glitch--5
  0%
    --spread 3
    --skew 0
  5%
    --spread -1
  10%
    --spread -4
    --skew 5
  12%
    --spread 3
    --skew 3
  15%
    --spread 1
  18%
    --spread 4
    --skew -4
  25%
  100%
    --skew 0
    --spread 0

.glitch--6
  [data-char]
    animation flicker calc(var(--speed, 4) * 1s) calc(var(--delay, 0) * 1s) infinite steps(1)
    opacity var(--opacity, 1)
    --speed calc(var(--char-index) + 1)
    --delay var(--char-index)

.glitch--7
  [data-char]
    --scale 1.15
    animation scale calc(var(--speed, 4) * 1s) calc(var(--delay, 0) * 1s) infinite steps(1), shrink calc(var(--speed, 4) * 1s) calc(var(--delay, 0) * 1s) infinite steps(1)
    opacity var(--opacity, 1)
    --speed calc(var(--char-index) + 2)
    --delay var(--char-index)

.glitch--8
  [data-char]
    --split 50
    color transparent
    position relative
    &:after
    &:before
      content attr(data-char)
      position absolute
      top 0%
      left 0%
      height 100%
      width 100%
      color white
      -webkit-clip-path var(--clip)
      clip-path var(--clip)
    &:after
      --clip inset(0 0 calc(var(--split) * 1%) 0)
      --shift-y -20
      --shift-x 50
      animation shift 3s infinite steps(1)
    &:before
      --shift-x -50
      animation shift 4s infinite steps(1)
      --clip inset(calc((95 - var(--split)) * 1%) 0 0 0)

  [data-char="C"]
  [data-char="H"]
    &:after
      --shift-y 25
      --shift-x 0

.glitch--9
  [data-char]
    --split 65
    color transparent
    position relative
    &:after
    &:before
      content attr(data-char)
      position absolute
      top 0%
      left 0%
      height 100%
      width 100%
      color white
      -webkit-clip-path var(--clip)
      clip-path var(--clip)
      animation shift calc(var(--speed, 4) * 1s) infinite steps(1)

  [data-char='G']
  [data-char='T']
  [data-char='C']
  [data-char='H']
    &:after
      --clip inset(0 calc(var(--split) * 1%) 0 0)
      --shift-y 0
      --shift-x -10
      --speed 2
    &:before
      --shift-x 0
      --shift-y -15
      --speed 5
      --clip inset(0 0 0 calc((99 - var(--split)) * 1%))
  [data-char='L']
  [data-char='I']
    --split 50
    &:after
      --clip inset(0 0 calc(var(--split) * 1%) 0)
      --shift-y 0
      --shift-x 25
      --speed 3
    &:before
      --shift-x 0
      --shift-y 20
      --speed 5
      --clip inset(calc((99 - var(--split)) * 1%) 0 0 0)
  [data-char='G']
    &:after
      --shift-y -20
    &:before
      --shift-y 20

.glitch--10
  [data-char]
    --txt attr(data-char)
    color transparent
    position relative
    &:after
      content var(--txt)
      position absolute
      top 0%
      left 0%
      height 100%
      width 100%
      color white
      animation flash-letter calc(var(--speed, 3) * 1s) calc(var(--delay, 0) * 1s) infinite, scale calc(var(--speed, 3) * 1s) calc(var(--delay, 0) * 1s) infinite steps(1)
  [data-char='G']
    --speed 2
    --delay 0
    --letter-1 "X"
    --letter-2 "∞"
    --letter-3 "("
    --letter-4 "…"

  [data-char='I']
    --speed 10
    --delay 4
    --letter-3 "ç"
    --letter-4 "∂"

  [data-char='C']
  [data-char='H']
    --scale 0.75
    --speed 6
    --delay 2
    --letter-2 "à"
    --letter-4 "¶"

@keyframes flash-letter
  0%, 25%, 100%
    content attr(data-char)
  5%
    content var(--letter-1, attr(data-char))
  10%
    content var(--letter-2, attr(data-char))
  15%
    content var(--letter-3, attr(data-char))
  20%
    content var(--letter-4, attr(data-char))

//Reveal word underneath
.glitch--11
  [data-char]
    color transparent
    position relative
    --speed calc((var(--char-index) + 1) * 2)
    --delay var(--char-index)
    &:after
    &:before
      position absolute
      top 0%
      left 0%
      height 100%
      width 100%
      color white
    &:after
      content attr(data-char)
      animation hide calc(var(--speed, 2) * 1s) calc(var(--delay, 0) * 1s) infinite ease alternate-reverse both
    &:before
      color hsl(236, 100%, 90%)
      content var(--txt)
      animation reveal calc(var(--speed, 2) * 1s) calc(var(--delay, 0) * 1s) infinite ease alternate-reverse both
  [data-char='G']
    --txt "S"
  [data-char='L']
    --txt "E"
  [data-char='I']
    --txt "C"
  [data-char='T']
    --txt "R"
  [data-char='C']
    --txt "E"
  [data-char='H']
    --txt "T"

@keyframes reveal
  0%
    clip-path inset(0 0 0 0)
    -webkit-clip-path inset(0 0 0 0)

  10%
    clip-path inset(70% 0 0 0)
    -webkit-clip-path inset(70% 0 0 0)
  20%
    clip-path inset(85% 0 0 0)
    -webkit-clip-path inset(85% 0 0 0)
  30%
    clip-path inset(5% 0 0 0)
    -webkit-clip-path inset(5% 0 0 0)
  40%
    clip-path inset(45% 0 0 0)
    -webkit-clip-path inset(45% 0 0 0)
  50%
  100%
    clip-path inset(100% 0 0 0)
    -webkit-clip-path inset(100% 0 0 0)
@keyframes hide
  0%
    clip-path inset(0 0 100% 0)
    -webkit-clip-path inset(0 0 100% 0)
  10%
    clip-path inset(0 0 30% 0)
    -webkit-clip-path inset(0 0 30% 0)
  20%
    clip-path inset(0 0 15% 0)
    -webkit-clip-path inset(0 0 15% 0)
  30%
    clip-path inset(0 0 95% 0)
    -webkit-clip-path inset(0 0 95% 0)
  40%
    clip-path inset(0 0 55% 0)
    -webkit-clip-path inset(0 0 55% 0)
  50%
  100%
    clip-path inset(0 0 0 0)
    -webkit-clip-path inset(0 0 0 0)

// Frayed
.glitch--12
  [data-char]
    --split 70
    color transparent
    position relative
    &:after
    &:before
      content attr(data-char)
      position absolute
      top 0%
      left 0%
      height 100%
      width 100%
      color white
      -webkit-clip-path var(--clip)
      clip-path var(--clip)
    &:after
      --clip inset(0 0 calc(var(--split) * 1%) 0)
      --shift-x -125
      animation shift 4s infinite steps(1)
    &:before
      animation shift 8s infinite steps(1)
      --shift-x 50
      --shift-y 50
      --clip inset(calc((95 - var(--split)) * 1%) 0 0 0)

  [data-char='G']
    animation squash 3s infinite steps(2)
  [data-char='C']
    animation squash 4s infinite steps(2)
  [data-char='H']
    --scale 1.5
    animation squash 4s infinite steps(2)

@keyframes squash
  0%, 48%, 52%, 100%
    transform scaleY(1)
  50%
    transform scaleY(var(--scale, 0))

/**
 * Utility animations
*/
@keyframes flicker
  0%
  20%
    --opacity 0.25
  10%
  30%
  40%
  70%
  80%
  90%
  100%
    --opacity 1
@keyframes skew
  0%, 40%, 48%, 100%
    transform skew(0deg)
  44%
    transform skew(calc(var(--skew) * 1deg))
@keyframes scale
  0%, 47%, 55%, 100%
    transform scale(1)
  50%
    transform scale(var(--scale))

@keyframes shrink
  0%, 45%, 53%, 100%
    text-transform uppercase
  50%
    text-transform lowercase

@keyframes shift
  0%, 68%, 72%, 100%
    transform translate(0, 0)
  70%
    transform translate(calc(var(--shift-x, 25) * 1%), calc(var(--shift-y, 0) * 1%))
/**
 * Themeing
*/
body
  background #111
  font-family 'Exo', sans-serif
  min-height 100vh
  overflow-x hidden
  --font-size 20

  @media(min-width 768px)
    --font-size 48

.page
  align-items center
  display flex
  font-size calc(var(--font-size) * 1px)
  height 100vh
  justify-content center
  position relative
  scroll-snap-align center
  width 100vw
  letter-spacing calc(var(--font-size) * 0.2px)

.container
  height 100vh
  overflow auto
  overflow-x hidden
  scroll-snap-type y mandatory

.char
  color #fff
  display inline-block
!

JS 

              
                const { Splitting } = window
Splitting()
window.ScrollOut({
  scrollingElement: '.container',
  targets: '.text',
})
!
999px

Console