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December 8, 2021 17:07
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Potential future with ES Modules and Web Components (single HTML-module version)
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| main fancy-article::part(header) { | |
| color: red; | |
| } | |
| aside fancy-article::part(header) { | |
| color: blue; | |
| } |
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| <template id="fancyArticleTemplate"> | |
| <style> | |
| :host { | |
| padding: 1rem; | |
| background-color: #fff; | |
| border-radius: 0.5em; | |
| font-size: 1rem; | |
| } | |
| ::slotted([slot="title"]) { | |
| color: #333; | |
| font-weight: 900; | |
| font-size: 2em; | |
| } | |
| </style> | |
| <article> | |
| <article-header part="header"> | |
| <slot name="title">TITLE</slot> | |
| </article-header> | |
| <slot name="description">DESCRIPTION</slot> | |
| </article> | |
| </template> | |
| <script type="module"> | |
| window.customElements.define('fancy-article', class extends HTMLElement { | |
| constructor() { | |
| super(); | |
| this.attachShadow({ mode: 'open' }); | |
| this.shadowRoot.appendChild( | |
| document.importNode( | |
| import.meta.document.getElementById('fancyArticleTemplate').content, | |
| true, | |
| ), | |
| ); | |
| } | |
| }); | |
| </script> |
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| <!doctype html> | |
| <meta charset="utf-8"> | |
| <link rel="stylesheet" href="/app.css"> | |
| <script type="module" src="/fancy-article.html"></script> | |
| <main> | |
| <fancy-article> | |
| <h1 slot="title">Hello, World!<h1> | |
| <p slot="description"> | |
| I am a Web Component. | |
| </p> | |
| </fancy-article> | |
| </main> | |
| <aside> | |
| <fancy-article> | |
| <h2 slot="title">Another Fancy Article<h2> | |
| <p slot="description"> | |
| I am another one with a different heading level. | |
| </p> | |
| </fancy-article> | |
| </aside> |
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