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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.

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Insecure Resource

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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).

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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

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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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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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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 

              
                <svg class="ham hamRotate ham1" viewBox="0 0 100 100" width="80" onclick="this.classList.toggle('active')">
  <path
        class="line top"
        d="m 30,33 h 40 c 0,0 9.044436,-0.654587 9.044436,-8.508902 0,-7.854315 -8.024349,-11.958003 -14.89975,-10.85914 -6.875401,1.098863 -13.637059,4.171617 -13.637059,16.368042 v 40" />
  <path
        class="line middle"
        d="m 30,50 h 40" />
  <path
        class="line bottom"
        d="m 30,67 h 40 c 12.796276,0 15.357889,-11.717785 15.357889,-26.851538 0,-15.133752 -4.786586,-27.274118 -16.667516,-27.274118 -11.88093,0 -18.499247,6.994427 -18.435284,17.125656 l 0.252538,40" />
</svg>
<svg class="ham ham2" viewBox="0 0 100 100" width="80" onclick="this.classList.toggle('active')">
  <path
        class="line top"
        d="m 70,33 h -40 c -6.5909,0 -7.763966,-4.501509 -7.763966,-7.511428 0,-4.721448 3.376452,-9.583771 13.876919,-9.583771 14.786182,0 11.409257,14.896182 9.596449,21.970818 -1.812808,7.074636 -15.709402,12.124381 -15.709402,12.124381" />
  <path
        class="line middle"
        d="m 30,50 h 40" />
  <path
        class="line bottom"
        d="m 70,67 h -40 c -6.5909,0 -7.763966,4.501509 -7.763966,7.511428 0,4.721448 3.376452,9.583771 13.876919,9.583771 14.786182,0 11.409257,-14.896182 9.596449,-21.970818 -1.812808,-7.074636 -15.709402,-12.124381 -15.709402,-12.124381" />
</svg>
<svg class="ham ham3" viewBox="0 0 100 100" width="80" onclick="this.classList.toggle('active')">
  <path
        class="line top"
        d="m 70,33 h -40 c -11.092231,0 11.883874,13.496726 -3.420361,12.956839 -0.962502,-2.089471 -2.222071,-3.282996 -4.545687,-3.282996 -2.323616,0 -5.113897,2.622752 -5.113897,7.071068 0,4.448316 2.080609,7.007933 5.555839,7.007933 2.401943,0 2.96769,-1.283974 4.166879,-3.282995 2.209342,0.273823 4.031294,1.642466 5.857227,-0.252538 v -13.005715 16.288404 h 7.653568" />
  <path
        class="line middle"
        d="m 70,50 h -40 c -5.6862,0 -8.534259,5.373483 -8.534259,11.551069 0,7.187738 3.499166,10.922274 13.131984,10.922274 11.021777,0 7.022787,-15.773343 15.531095,-15.773343 3.268142,0 5.177031,-2.159429 5.177031,-6.7 0,-4.540571 -1.766442,-7.33533 -5.087851,-7.326157 -3.321409,0.0092 -5.771288,2.789632 -5.771288,7.326157 0,4.536525 2.478983,6.805271 5.771288,6.7" />
  <path
        class="line bottom"
        d="m 70,67 h -40 c 0,0 -3.680675,0.737051 -3.660714,-3.517857 0.02541,-5.415597 3.391687,-10.357143 10.982142,-10.357143 4.048418,0 17.88928,0.178572 23.482143,0.178572 0,2.563604 2.451177,3.403635 4.642857,3.392857 2.19168,-0.01078 4.373905,-1.369814 4.375,-3.392857 0.0011,-2.023043 -1.924401,-2.589191 -4.553571,-4.107143 -2.62917,-1.517952 -4.196429,-1.799562 -4.196429,-3.660714 0,-1.861153 2.442181,-3.118811 4.196429,-3.035715 1.754248,0.0831 4.375,0.890841 4.375,3.125 2.628634,0 6.160714,0.267857 6.160714,0.267857 l -0.178571,-2.946428 10.178571,0 -10.178571,0 v 6.696428 l 8.928571,0 -8.928571,0 v 7.142858 l 10.178571,0 -10.178571,0" />
</svg>
<svg class="ham hamRotate ham4" viewBox="0 0 100 100" width="80" onclick="this.classList.toggle('active')">
  <path
        class="line top"
        d="m 70,33 h -40 c 0,0 -8.5,-0.149796 -8.5,8.5 0,8.649796 8.5,8.5 8.5,8.5 h 20 v -20" />
  <path
        class="line middle"
        d="m 70,50 h -40" />
  <path
        class="line bottom"
        d="m 30,67 h 40 c 0,0 8.5,0.149796 8.5,-8.5 0,-8.649796 -8.5,-8.5 -8.5,-8.5 h -20 v 20" />
</svg>
<svg class="ham hamRotate180 ham5" viewBox="0 0 100 100" width="80" onclick="this.classList.toggle('active')">
  <path
        class="line top"
        d="m 30,33 h 40 c 0,0 8.5,-0.68551 8.5,10.375 0,8.292653 -6.122707,9.002293 -8.5,6.625 l -11.071429,-11.071429" />
  <path
        class="line middle"
        d="m 70,50 h -40" />
  <path
        class="line bottom"
        d="m 30,67 h 40 c 0,0 8.5,0.68551 8.5,-10.375 0,-8.292653 -6.122707,-9.002293 -8.5,-6.625 l -11.071429,11.071429" />
</svg>
<svg class="ham ham6" viewBox="0 0 100 100" width="80" onclick="this.classList.toggle('active')">
  <path
        class="line top"
        d="m 30,33 h 40 c 13.100415,0 14.380204,31.80258 6.899646,33.421777 -24.612039,5.327373 9.016154,-52.337577 -12.75751,-30.563913 l -28.284272,28.284272" />
  <path
        class="line middle"
        d="m 70,50 c 0,0 -32.213436,0 -40,0 -7.786564,0 -6.428571,-4.640244 -6.428571,-8.571429 0,-5.895471 6.073743,-11.783399 12.286435,-5.570707 6.212692,6.212692 28.284272,28.284272 28.284272,28.284272" />
  <path
        class="line bottom"
        d="m 69.575405,67.073826 h -40 c -13.100415,0 -14.380204,-31.80258 -6.899646,-33.421777 24.612039,-5.327373 -9.016154,52.337577 12.75751,30.563913 l 28.284272,-28.284272" />
</svg>
<svg class="ham hamRotate ham7" viewBox="0 0 100 100" width="80" onclick="this.classList.toggle('active')">
  <path
        class="line top"
        d="m 70,33 h -40 c 0,0 -6,1.368796 -6,8.5 0,7.131204 6,8.5013 6,8.5013 l 20,-0.0013" />
  <path
        class="line middle"
        d="m 70,50 h -40" />
  <path
        class="line bottom"
        d="m 69.575405,67.073826 h -40 c -5.592752,0 -6.873604,-9.348582 1.371031,-9.348582 8.244634,0 19.053564,21.797129 19.053564,12.274756 l 0,-40" />
</svg>
<svg class="ham hamRotate ham8" viewBox="0 0 100 100" width="80" onclick="this.classList.toggle('active')">
  <path
        class="line top"
        d="m 30,33 h 40 c 3.722839,0 7.5,3.126468 7.5,8.578427 0,5.451959 -2.727029,8.421573 -7.5,8.421573 h -20" />
  <path
        class="line middle"
        d="m 30,50 h 40" />
  <path
        class="line bottom"
        d="m 70,67 h -40 c 0,0 -7.5,-0.802118 -7.5,-8.365747 0,-7.563629 7.5,-8.634253 7.5,-8.634253 h 20" />
</svg>
!

CSS 

              
                body {
  align-items: center;
  display: flex;
  height: 100%;
  justify-content: center;
  margin: 0;
  overflow: hidden;
  position: absolute;
  width: 100%;
}
.ham {
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: transform 400ms;
  -moz-user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.hamRotate.active {
  transform: rotate(45deg);
}
.hamRotate180.active {
  transform: rotate(180deg);
}
.line {
  fill:none;
  transition: stroke-dasharray 400ms, stroke-dashoffset 400ms;
  stroke:#000;
  stroke-width:5.5;
  stroke-linecap:round;
}
.ham1 .top {
  stroke-dasharray: 40 139;
}
.ham1 .bottom {
  stroke-dasharray: 40 180;
}
.ham1.active .top {
  stroke-dashoffset: -98px;
}
.ham1.active .bottom {
  stroke-dashoffset: -138px;
}
.ham2 .top {
  stroke-dasharray: 40 121;
}
.ham2 .bottom {
  stroke-dasharray: 40 121;
}
.ham2.active .top {
  stroke-dashoffset: -102px;
}
.ham2.active .bottom {
  stroke-dashoffset: -102px;
}
.ham3 .top {
  stroke-dasharray: 40 130;
}
.ham3 .middle {
  stroke-dasharray: 40 140;
}
.ham3 .bottom {
  stroke-dasharray: 40 205;
}
.ham3.active .top {
  stroke-dasharray: 75 130;
  stroke-dashoffset: -63px;
}
.ham3.active .middle {
  stroke-dashoffset: -102px;
}
.ham3.active .bottom {
  stroke-dasharray: 110 205;
  stroke-dashoffset: -86px;
}
.ham4 .top {
  stroke-dasharray: 40 121;
}
.ham4 .bottom {
  stroke-dasharray: 40 121;
}
.ham4.active .top {
  stroke-dashoffset: -68px;
}
.ham4.active .bottom {
  stroke-dashoffset: -68px;
}
.ham5 .top {
  stroke-dasharray: 40 82;
}
.ham5 .bottom {
  stroke-dasharray: 40 82;
}
.ham5.active .top {
  stroke-dasharray: 14 82;
  stroke-dashoffset: -72px;
}
.ham5.active .bottom {
  stroke-dasharray: 14 82;
  stroke-dashoffset: -72px;
}
.ham6 .top {
  stroke-dasharray: 40 172;
}
.ham6 .middle {
  stroke-dasharray: 40 111;
}
.ham6 .bottom {
  stroke-dasharray: 40 172;
}
.ham6.active .top {
  stroke-dashoffset: -132px;
}
.ham6.active .middle {
  stroke-dashoffset: -71px;
}
.ham6.active .bottom {
  stroke-dashoffset: -132px;
}
.ham7 .top {
  stroke-dasharray: 40 82;
}
.ham7 .middle {
  stroke-dasharray: 40 111;
}
.ham7 .bottom {
  stroke-dasharray: 40 161;
}
.ham7.active .top {
  stroke-dasharray: 17 82;
  stroke-dashoffset: -62px;
}
.ham7.active .middle {
  stroke-dashoffset: 23px;
}
.ham7.active .bottom {
  stroke-dashoffset: -83px;
}
.ham8 .top {
  stroke-dasharray: 40 160;
}
.ham8 .middle {
  stroke-dasharray: 40 142;
  transform-origin: 50%;
  transition: transform 400ms;
}
.ham8 .bottom {
  stroke-dasharray: 40 85;
  transform-origin: 50%;
  transition: transform 400ms, stroke-dashoffset 400ms;
}
.ham8.active .top {
  stroke-dashoffset: -64px;
}
.ham8.active .middle {
  //stroke-dashoffset: -20px;
  transform: rotate(90deg);
}
.ham8.active .bottom {
  stroke-dashoffset: -64px;
}
!

JS
!
999px

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