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HTML

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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

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About the <head>

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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).

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.

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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

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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 

              
                <h1>CSS clip-path url() with SVG clipPath</h1>
<svg viewBox="0 0 512 512" width="0" height="0">
  <defs>
    <clipPath id="snowflake">
<path transform="scale(0.66) translate(125,0)" d="M489.4,245.9H448l11.3-19.7c2.8-4.8,1.1-11-3.7-13.7c-4.8-2.8-11-1.1-13.7,3.7l-17.1,29.7h-28.2l33.7-58.5
	c2.8-4.8,1.1-11-3.7-13.7c-4.8-2.8-11-1.1-13.7,3.7l-39.6,68.5h-27.2c-2.9-25.7-16.6-48.2-36.4-62.9l13.7-23.6l79.2,0
	c5.6,0,10.1-4.5,10.1-10.1c0-5.6-4.5-10.1-10.1-10.1l-67.5,0l14.1-24.4l34.3,0l0,0c5.6,0,10.1-4.5,10.1-10.1
	c0-5.6-4.5-10.1-10.1-10.1l-22.7,0l20.7-35.9c2.8-4.8,1.1-11-3.7-13.7c-4.8-2.8-11-1.1-13.7,3.7l-20.8,35.9L332,65
	c-2.8-4.8-9-6.5-13.7-3.7c-4.8,2.8-6.5,8.9-3.7,13.7l17.2,29.7l-14.1,24.4l-33.7-58.5c-2.8-4.8-8.9-6.5-13.7-3.7
	c-4.8,2.8-6.5,8.9-3.7,13.7l39.5,68.5l-13.6,23.6c-11.1-4.9-23.4-7.7-36.3-7.7c-12.9,0-25.2,2.8-36.3,7.6l-13.6-23.5l39.5-68.5
	c2.8-4.8,1.1-11-3.7-13.7c-4.8-2.8-11-1.1-13.7,3.7l-33.7,58.5l-14.1-24.4L197.6,75c2.8-4.8,1.1-11-3.7-13.7
	c-4.8-2.8-11-1.1-13.7,3.7l-11.3,19.7l-20.8-36c-2.8-4.8-9-6.4-13.7-3.7c-4.8,2.8-6.5,8.9-3.7,13.7l20.7,36h-22.7
	c-5.6,0-10.1,4.5-10.1,10.1c0,5.6,4.5,10.1,10.1,10.1h34.3l14.1,24.4h-67.5c-5.6,0-10.1,4.5-10.1,10.1c0,5.6,4.5,10.1,10.1,10.1
	h79.1l13.7,23.7c-19.8,14.7-33.5,37.1-36.4,62.9h-27.2l-39.6-68.5c-2.8-4.8-9-6.5-13.8-3.7c-4.8,2.8-6.5,8.9-3.7,13.7l33.8,58.5
	H87.2l-17.1-29.7c-2.8-4.8-9-6.4-13.7-3.7c-4.8,2.8-6.5,8.9-3.7,13.7L64,245.9H22.5c-5.6,0-10.1,4.5-10.1,10.1s4.5,10.1,10.1,10.1
	H64l-11.3,19.7c-2.8,4.8-1.1,11,3.7,13.7c1.6,0.9,3.3,1.4,5,1.4c3.5,0,6.9-1.8,8.7-5l17.1-29.7h28.2l-33.8,58.5
	c-2.8,4.8-1.1,11,3.7,13.7c1.6,0.9,3.3,1.4,5,1.4c3.5,0,6.9-1.8,8.7-5l39.6-68.5h27.2c2.9,25.7,16.6,48.2,36.4,62.9l-13.7,23.7
	h-79.1c-5.6,0-10.1,4.5-10.1,10.1c0,5.6,4.5,10.1,10.1,10.1H177l-14.1,24.4h-34.3c-5.6,0-10.1,4.5-10.1,10.1s4.5,10.1,10.1,10.1
	h22.7l-20.7,35.9c-2.8,4.8-1.1,11,3.7,13.7c1.6,0.9,3.3,1.4,5,1.4c3.5,0,6.9-1.8,8.7-5l20.8-35.9l11.4,19.7c1.9,3.2,5.2,5,8.7,5
	c1.7,0,3.4-0.4,5-1.4c4.8-2.8,6.5-8.9,3.7-13.7l-17.2-29.7l14.1-24.4l33.8,58.5c1.9,3.2,5.2,5,8.7,5c1.7,0,3.4-0.4,5-1.4
	c4.8-2.8,6.5-8.9,3.7-13.7l-39.6-68.5l13.6-23.6c11.1,4.9,23.4,7.7,36.3,7.7c12.9,0,25.2-2.8,36.3-7.7l13.6,23.6l-39.6,68.5
	c-2.8,4.8-1.1,11,3.7,13.7c1.6,0.9,3.3,1.4,5,1.4c3.5,0,6.9-1.8,8.7-5l33.8-58.5l14.1,24.4l-17.1,29.7c-2.8,4.8-1.1,11,3.7,13.7
	c1.6,0.9,3.3,1.4,5,1.4c3.5,0,6.9-1.8,8.7-5l11.3-19.6l20.8,36c1.9,3.2,5.3,5,8.7,5c1.7,0,3.5-0.4,5-1.4c4.8-2.8,6.5-8.9,3.7-13.7
	l-20.8-36h22.7c5.6,0,10.1-4.5,10.1-10.1c0-5.6-4.5-10.1-10.1-10.1h-34.3L335,372.7l67.5,0c5.6,0,10.1-4.5,10.1-10.1
	c0-5.6-4.5-10.1-10.1-10.1l-79.1,0l-13.7-23.6c19.9-14.7,33.5-37.1,36.4-62.9h27.2l39.6,68.5c1.9,3.2,5.2,5,8.7,5
	c1.7,0,3.4-0.4,5-1.4c4.8-2.8,6.4-8.9,3.7-13.7l-33.7-58.5h28.2l17.2,29.7c1.9,3.2,5.2,5,8.7,5c1.7,0,3.4-0.4,5-1.4
	c4.8-2.8,6.5-8.9,3.7-13.7L448,266.1h41.5c5.6,0,10.1-4.5,10.1-10.1C499.5,250.4,495,245.9,489.4,245.9z M326.5,256
	c0,3.5-0.6,6.7-1,10.1c-2.6,18.3-12.2,34.2-26.1,45.1c-5.3,4.2-11,7.7-17.3,10.3c-8.1,3.2-16.9,5.2-26.2,5.2c-9.3,0-18-1.9-26.2-5.2
	c-6.3-2.5-12.1-6.1-17.3-10.3c-13.9-10.9-23.4-26.8-26.1-45.1c-0.5-3.3-1-6.6-1-10.1c0-3.5,0.5-6.8,1-10.1
	c2.6-18.3,12.2-34.2,26.1-45.1c5.3-4.2,11-7.7,17.3-10.3c8.1-3.2,16.9-5.2,26.2-5.2c9.3,0,18,1.9,26.2,5.2
	c6.3,2.5,12.1,6.1,17.3,10.3c13.9,10.9,23.4,26.8,26.1,45.1C326,249.2,326.5,252.5,326.5,256z"/>
    </clipPath>
    </defs>
<!--  <image clip-path="url(#snowflake)" width="512" height="512"  preserveAspectRatio="xMinYMid slice" xlink:href="http://maddesigns.de/SVG/clip-path-test_files/Winter-Wonderland.jpg"></image>-->

</svg>

<img src="http://maddesigns.de/SVG/clip-path-test_files/Winter-Wonderland.jpg" alt="" />

<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quibusdam qui earum, eos ipsa ex perspiciatis. Eos ratione veniam eius provident, quae nobis accusantium molestiae consequatur amet explicabo in labore dolore? Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quibusdam qui earum, eos ipsa ex perspiciatis. Eos ratione veniam eius provident, quae nobis accusantium molestiae consequatur amet explicabo in labore dolore? Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quibusdam qui earum, eos ipsa ex perspiciatis. Eos ratione veniam eius provident, quae nobis accusantium molestiae consequatur amet explicabo in labore dolore? Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quibusdam qui earum, eos ipsa ex perspiciatis. Eos ratione veniam eius provident, quae nobis accusantium molestiae consequatur amet explicabo in labore dolore? Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quibusdam qui earum, eos ipsa ex perspiciatis. Eos ratione veniam eius provident, quae nobis accusantium molestiae consequatur amet explicabo in labore dolore? Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quibusdam qui earum, eos ipsa ex perspiciatis. Eos ratione veniam eius provident, quae nobis accusantium molestiae consequatur amet explicabo in labore dolore? Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quibusdam qui earum, eos ipsa ex perspiciatis. Eos ratione veniam eius provident, quae nobis accusantium molestiae consequatur amet explicabo in labore dolore? Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quibusdam qui earum, eos ipsa ex perspiciatis. Eos ratione veniam eius provident, quae nobis accusantium molestiae consequatur amet explicabo in labore dolore? Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quibusdam qui earum, eos ipsa ex perspiciatis. Eos ratione veniam eius provident, quae nobis accusantium molestiae consequatur amet explicabo in labore dolore? Lorem ipsum dolor sit amet, consectetur adipisicing elit. Quibusdam qui earum, eos ipsa ex perspiciatis. Eos ratione veniam eius provident, quae nobis accusantium molestiae consequatur amet explicabo in labore dolore?</p>
!

CSS 

              
                body {
  margin: 2em;
}
img {
  float: left;
  -webkit-shape-outside: polygon(66% 0%, 87% 55%, 70% 100%, 0% 0%);
  shape-outside: polygon(66% 0%, 87% 55%, 70% 100%, 0% 0%);

  clip-path: url(#snowflake);
  /* Chrome and WebKit bug with coordinate space when referencing SVG <clipPath>
   * https://code.google.com/p/chromium/issues/detail?id=417370
   */
  transform: translate(0,0);
}
!

JS
!
999px

Console