You don’t need external assets in an HTML file

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A fun exercise from Terence Eden. You can send an HTML file over the wire including anything a website might need without requesting any other files. CSS and JavaScript are easy, because there are <script> and <style> tags. Images and fonts (and pretty much whatever other kind of asset) aren’t too hard because Data URLs exist. See Terence’s post for an extra-tricky final version including .zip files.

Reminds me of a couple of other tricks…

• You don’t have to include CSS in your HTML, you can force an HTML file to load the styles via header.
• You can use that trick above, literally send zero HTML, and still make a thing that looks like a website because of how the browser implies certain HTML, which you can then append content via CSS pseudo elements. Read: “Using CSS without HTML”

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