Resources

Markdown

• The original Markdown definition, by John Gruber.
• Pandoc's implementation of Markdown differs from the strict definition, allowing for additional features when converting to a wider range of formats.

HTML

• Mozilla Developer Network is a phenomenal reference for web technologies, including entries on every HTML element.

CSS

• CSS-Tricks is a great source of clear and clever advice on getting things done with CSS. I reference a few of their pages regularly:
  • A Complete Guide to Flexbox explains everything you need to know about Flexbox with helpful illustrations and examples.
  • A Complete Guide to Grid similarly lays out CSS Grid.
• Designing For Print With CSS by Rachel Andrew is my go-to reference for creating style sheets for my print-first projects.
• I've almost entirely switched my own designs over to TailwindCSS, a utility-first framework that lets you write the bulk of your styling without leaving your HTML.

Document Conversion

• I recommend Pandoc for converting between a multiple formats—Markdown, HTML, DOCX, etc.
• Weasyprint is an open-source project that converts HTML and CSS files to PDFs.