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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.

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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.

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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.

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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.

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JavaScript

About JavaScript Preprocessors

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

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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.

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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.

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+ 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.

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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.

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HTML 

              
                p Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed non risus. Suspendisse lectus tortor, dignissim sit amet, adipiscing nec, ultricies sed, dolor. Cras elementum ultrices diam. Maecenas ligula massa, varius a, semper congue, euismod non, mi. Proin porttitor, orci nec nonummy molestie, enim est eleifend mi, non fermentum diam nisl sit amet erat. Duis semper. Duis arcu massa, scelerisque vitae, consequat in, pretium a, enim. Pellentesque congue. Ut in risus volutpat libero pharetra tempor. Cras vestibulum bibendum augue. Praesent egestas leo in pede. Praesent blandit odio eu enim. Pellentesque sed dui ut augue blandit sodales. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Aliquam nibh. Mauris ac mauris sed pede pellentesque fermentum. Maecenas adipiscing ante non diam sodales hendrerit.
hr.hr
p Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed non risus. Suspendisse lectus tortor, dignissim sit amet, adipiscing nec, ultricies sed, dolor. Cras elementum ultrices diam. Maecenas ligula massa, varius a, semper congue, euismod non, mi. Proin porttitor, orci nec nonummy molestie, enim est eleifend mi, non fermentum diam nisl sit amet erat. Duis semper. Duis arcu massa, scelerisque vitae, consequat in, pretium a, enim. Pellentesque congue. Ut in risus volutpat libero pharetra tempor. Cras vestibulum bibendum augue. Praesent egestas leo in pede. Praesent blandit odio eu enim. Pellentesque sed dui ut augue blandit sodales. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Aliquam nibh. Mauris ac mauris sed pede pellentesque fermentum. Maecenas adipiscing ante non diam sodales hendrerit.
hr.hr
svg.separator(xmlns='http://www.w3.org/2000/svg' viewbox='0 0 1280 60' display='none')
  path(d='M606 6c-10 3-22 10-37 22l-7 5-1-6c-1-8-4-14-9-18-6-4-17-2-21 4-3 4-3 8 0 11 3 5 6 6 11 6h5l-2 3c-3 7-13 11-23 9-9-2-17-5-22-9-4-4-4-5-5-10 0-4 0-5 2-7 4-3 9-3 11 0l3 6c0 5 1 5 4 5 2-1 2-2 2-6 0-6-2-10-6-13-2-2-4-2-9-2-6 0-7 0-9 3-2 2-4 5-5 9l-3 6-14-7C447 5 418 2 382 2c-23 1-58 4-67 6-10 2-21 6-37 12-10 5-22 8-24 7-1-1 1-4 3-5l5-2c3-2 4-2 4-5l-2-4c-5-2-13 3-20 11-4 5-5 6-7 5-4-1-11-4-14-7l-5-2-6 4-5 5h-90C24 26 13 27 4 31c-3 1-4 3-1 4l87 1 102 1h15l4 4 6 4 5-3c5-4 12-7 17-7 4 0 4 0 7 5 10 14 33 12 73-6 12-5 15-6 22-5h5l-2 4c-5 8-2 20 5 23h7c9-3 11-11 7-20l-3-7c0-3 8-9 14-11 8-2 18-1 28 3 9 3 10 5 4 7-14 3-19 8-19 16 0 7 7 13 13 13s13-5 13-9c-1-2-2-2-11 0-5 0-5 0-6-2 0-4 2-9 7-11 7-4 15-2 36 6 16 6 39 12 52 15 34 7 54 1 85-25 20-16 27-19 41-19 15 1 24 7 14 10-5 1-8 4-13 11-5 8-10 12-15 12-3 0-4-1-3-5 2-7-1-12-8-12-6 0-10 4-10 12 0 10 8 17 20 17 6 0 16-3 22-6l3-2 8 4 10 3 8-3 7-4 7 3c14 6 29 5 35-2s6-17 0-21c-9-5-16 1-13 11 1 4 1 4-2 4-4 0-7-1-15-10l-20-15v-2c1-3 8-6 15-6 11 0 23 6 46 23 18 14 21 16 37 22 8 3 10 3 20 3 26 0 45-4 93-22 12-4 19-4 22-1s4 7 2 11c-2 1-3 2-8 2l-6 1c0 3 3 5 9 5 12 0 19-10 12-20-3-4-7-6-14-7l-6-2 5-3c16-10 36-11 47-1l4 4-3 3-6 6c-2 4-1 11 1 14 1 3 6 6 9 6s7-2 10-5c2-3 2-4 2-12 0-9 0-9 3-9s14 4 21 8c12 6 21 9 34 11 14 2 29-2 36-10 5-4 8-4 17 1l9 4 10-4c5-3 8-4 13-5h100l91 3-4-7-8-3h-78c-96 0-105-1-115-5-8-3-11-3-15 1-5 4-11 6-14 5l-5-5c-5-7-9-9-19-9-7 0-10 1-10 4 0 2 1 2 7 1 8 0 12 1 14 5 2 3 2 5 0 6-4 1-17-2-28-6-34-12-72-18-112-18-35 0-52 3-76 14-10 5-16 7-16 6l-2-6-2-8c-3-4-9-6-14-6-5 1-9 4-11 9-3 4-2 6 2 7 2 0 3-1 5-3 3-6 5-6 8-4 5 4 6 12 2 17-2 2-12 9-16 10-15 6-32 1-35-11v-3h7c10 1 12-1 12-8 0-5-4-9-9-12-11-4-21 3-23 18l-1 5c-2 0-6-3-18-11-9-8-19-12-29-15-10-1-14-1-24 4l-8 5-3-2c-13-8-22-9-33-6zm-242 8c0 2-1 3-5 6-6 3-10 4-19 2s-23 2-49 13c-10 4-21 6-31 4-4-1-7-4-6-5l11-3 28-8c25-8 38-11 56-11h15v2zm74 0c13 2 24 6 46 18 28 15 30 15 40 15l10-1c3 0 3 2 0 3l-10 2c-18 3-36-2-78-21-13-7-27-12-40-17 0-2 22-1 32 1zm438 0l-2 3-29 12c-33 14-37 16-49 19-13 4-17 4-22 4-6-1-5-3 2-6l13-6c15-9 38-20 50-24 9-2 19-4 28-4 8 0 9 0 9 2zm70 0c12 2 29 6 46 12l24 7c11 1 14 3 11 6-3 2-9 3-13 3-5 0-13-2-31-9s-30-10-37-10c-6 0-11-2-14-5-3-4-3-6 1-5l13 1zm120 15c3 2 3 4 0 5-2 1-7 0-7-2 0-1 3-5 5-5l2 2zm-842 1v3c-2 2-6 2-8 0-3-3 4-6 8-3zm712 4c1 3-1 9-3 10-4 2-5 0-5-4s1-5 2-6c3-3 5-2 6 0zm-581 3l1 5c0 3 0 4-2 4-3 0-3-1-4-4v-6c1-2 4-1 5 1z')
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CSS 

              
                _color0 = #333           // couleur de fond
_color1 = #e91e63        // couleur dominante 1
_color2 = #b9515d        // couleur dominante 2
_color3 = #8bc34a        // couleur secondaire (@todo à définir)
_color4 = #8bc34a        // couleur secondaire (vert)
_color5 = #ffa500        // couleur secondaire (orange)
_color6 = #448aff        // couleur secondaire (bleu)
_color7 = #f8fed8        // couleur secondaire (jaune)
_colorT = #e9dac5        // couleur du texte
_colorG = _color0        // gris de référence
_colorAdd1 = #d2b48c

hr
  overflow visible // @bugfix Show the overflow @affected Edge and IE.
  box-sizing content-box // @bugfix Add the correct box sizing @affected Firefox.
  height .2em //0 // @bugfix Add the correct box sizing @affected Firefox.
  margin 2.1em auto
  color transparent // inherit // @bugfix Reset gray color. @affected Firefox.
  background-color _color1
  border none

.hr
  width 40%

.separator
  width 100%
  height 2em
  fill _color1

// for demo:

body
  height 100vh
  margin 1em
  font-family Arial
  line-height 1.5
  color _colorT
  background-color _color0
!

JS 

              
                const separatorSvgForHr = (() => {
  const hrs = document.querySelectorAll('hr.hr')
  const icon = document.querySelector('.separator')
  const iconClone = icon.cloneNode(true)
  iconClone.setAttribute('role', 'separator')
  iconClone.removeAttribute('display')
  console.log(iconClone)
  for (const hr of hrs) {
    hr.insertAdjacentHTML('afterEnd', iconClone.outerHTML)
    hr.remove()
  }
})()


// https://www.cssportal.com/css-clip-path-generator/
// https://svgsilh.com/tag/divider-1.html
// "divider"
// https://svgsilh.com/image/2154993.html
// https://svgsilh.com/svg/2154993.svg
!
999px

Console