Hi, I’m Lea and I love making things. Ι design new web technologies implemented in browsers, and tools used by millions of developers. As a W3C TAG member, I review web technology proposals to ensure they benefit the Web. I’ve done HCI research at MIT on democratizing web development, earning me a PhD. I speak, teach, and write, including a bestselling book with O’Reilly, dubbed “Best CSS book”. I often blog about all this – and more!
Blog
- Numbers or Brackets for numeric questions?
- Help Design the Inaugural State of HTML Survey!
- Going Lean
- Rethinking Categorization
- 11ty: Index ALL the things!
- Migrating Disqus from WP to 11ty
- JS private class fields considered harmful
- Contrast Ratio has a new home — and this is great news!
- Position Statement for the 2022 W3C TAG Election
- State of CSS 2022 now open!
- On ratings and meters
- Help design the State of CSS Survey 2022!
- What is the best way to mark up an exclusive button group?
- Introducing Rety: live coding, without the stress
- Releasing Color.js: A library that takes color seriously
- On Yak Shaving and <md-block>, a new HTML element for Markdown
- Custom properties with defaults: 3+1 strategies
- Inherit ancestor font-size, for fun and profit
- Is the current tab active?
- 82% of developers get this 3 line CSS quiz wrong
- Dark mode in 5 minutes, with inverted lightness variables
- Mass function overloading: why and how?
- Writable getters
- Position Statement for the 2020 W3C TAG Election
- The case for Weak Dependencies in JS
- Simple pie charts with fallback, today
- The --var: ; hack to toggle multiple values with one custom property
- The failed promise of Web Components
- Developer priorities throughout their career
- Parsel: A tiny, permissive CSS selector parser