Jens Oliver Meiert

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Jens Oliver Meiert

Articles and books on the craft of web development, with a focus on HTML and CSS minimization and optimization.

The cover of “The Little Book of Little Books.”

Latest Book Release: The Little Book of Little Books

A compilation and update of the previous O’Reilly titles The Little Book of HTML/CSS Frameworks, The Little Book of HTML/CSS Coding Guidelines, and The Little Book of Website Quality Control (2015/2016)—and a different look at the craft.

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HTML Concepts: Browsing Contexts

Welcome to another episode of HTML Concepts! Today, browsing contexts—what is that?

Post from September 30, 2022, filed under .

0 of the Global Top 100 Websites Use Valid HTML (in 2022)

When you looked at the top websites in 2021, you learned that 98% of them included invalid HTML. When you do the same for the Top 100 globally, this year, would things have improved? Updated data, with a look at our field’s inability to produce valid HTML output.

Post from September 12, 2022, filed under .

An Attempt at Outlining the Many Factors Influencing Developer Experience

When looking at DX naively, it can seem that it depends on only one factor—DX = ƒ(x). But Developer Experience depends on many factors, and needs to be approached holistically. A quick attempt at sketching just what factors, each of which can tip the scale.

Post from September 6, 2022, filed under .

11 Tips to Read More and Read Faster (After Reading 791 Books in 9 Years)

Are you content with your reading? Here’s a collection of tried and tested ideas to help you read more—from switching to ebooks to reading everywhere to establishing routines to embracing short books to varying your reading speed.

Post from August 17, 2022, filed under .

One-Dimensional Website Optimization Considered Harmful

There are many website optimization vectors—SEO, performance, accessibility, &c.—, but optimizing on only one dimension may not only be expensive, but also counter-productive. On optimizing optimizations.

Post from August 4, 2022, filed under .

Website Optimization Measures, Part XIV

About link relationships, Twitterbot, dark mode, tags, addresses, social markup, color-scheme, and—FLoC.

Post from July 21, 2022, filed under and .

Minimal Social Markup

Every website and app these days relies on so-called “social markup,” metadata for a richer and prettier display in social media and messaging tools. On the absolute minimum you may need.

Post from July 14, 2022, filed under .

Thoughts on an Accessibility “Get Well” Plan

Have you wondered how to anchor accessibility in an engineering team, one that isn’t yet producing accessible sites or apps? Some options to start with, for further refinement and discussion.

Post from June 29, 2022, filed under .

The Machine-Illustrated Life of a Frontend Developer

You may know DALL·E, what you can do with it, what others do with it, and… be intrigued by it, too. And you may wonder, how would AI depict frontend developers?

Post from June 20, 2022, filed under and .

HTML Concepts: Focusable Areas

When you hear “focusable area,” what comes to your mind? Anchors and form elements that receive focus when being “tabbed through,” i.e., that are highlighted and that can be interacted with? That’s not a bad description!—but also not a complete one.

Post from May 30, 2022, filed under .

“The One with the Biggest Hammer Wins”

On a game we could stop playing.

Post from May 24, 2022, filed under and .

Write HTML, the HTML Way (Not the XHTML Way)

You may not use XHTML (anymore), but when you write HTML, you may be more influenced by XHTML than you think. You are very likely writing HTML, the XHTML way.

Post from May 17, 2022, filed under .

2 Approaches to Accessibility on the Web

One can distinguish two approaches to accessibility on the Web: to produce accessible websites and apps (active accessibility), and to produce accessible-making software (passive accessibility). On how largely using one approach would stand in the way of a greater vision for web accessibility.

Post from May 10, 2022, filed under .

The CSS Art Paradox

The fanciest CSS, standing on the shoulders of bloated HTML.

Post from April 28, 2022, filed under and .

3 Books for Working with Reality

With or without The Complete Conversations with God, The Nature of Personal Reality, and Loving What Is?

Post from April 22, 2022, filed under .

4 Books to Become a Greater Person

We may be quite fine as we are, but—we can probably still cultivate our character, our values, our conduct. Summoning Character, Advice to Young Men and Young Women, Profiles in Courage, and The Continuum Concept for inspiration.

Post from April 21, 2022, filed under .

3 Books to Become a Better Developer

When a frontend developer chooses A Philosophy of Software Design, The Pragmatic Programmer, and Clean Code.

Post from April 20, 2022, filed under .

4 Books to Become More Efficient and Effective

The start of a four-post mini-series about some of my favorite books, here featuring The One Thing, Getting More, Getting Things Done, and The Intelligent Investor.

Post from April 19, 2022, filed under .

HTML Concepts: Commands and Facets

On what you think they are, and something that what you think they are has.

Post from March 29, 2022, filed under .

What Makes You a Professional Web Developer

On a starting point that involves committing to high standards (including validating, and exercising control over oneself), acting ethically, practicing, learning, taking care of oneself, and taking care of others.

Post from March 16, 2022, filed under .

Website Optimization Measures, Part XIII

Lessons from running multiple websites, this time covering SVGs, HTML optimization, auto-completion, semantics tricks, code styling, favicon markup, and social images. Happy Saturday.

Post from March 5, 2022, filed under .

25 Web Development Terms You’ve Never Heard Of

__qems, cyclomatic complexity, homogenous migrations, NUIs, OOPIFs, and everything the web and software developer needs.

Post from February 1, 2022, filed under .

On the Difficulty of Counting the Number of HTML Elements

How many HTML elements are there? What looks like a fairly simple question, isn’t one, because there isn’t one number of HTML elements.

Post from January 17, 2022, filed under .

Reduce the Pressure on Young and Inexperienced Developers

Lower the expectations on young and inexperienced developers, and raise the expectations on their mentoring and coaching: on running gags, unrealistic expectations, and healthier hiring.

Post from January 6, 2022, filed under and .

2021

Professional and personal highlights and data.

Post from January 1, 2022, filed under .

About Me

Jens Oliver Meiert, on September 30, 2021.

I’m Jens, and I’m an engineering lead—currently manager for Developer Experience at LivePerson—and author.

In web development, I specialize in HTML and CSS, contribute to technical standards, and write books (like The Little Book of HTML/CSS Frameworks, On Web Development, CSS Optimization Basics, the Upgrade Your HTML series, and The Web Development Glossary).

I love trying things: In philosophy, I’m interested in metaphysics (even in How to Work on Oneself). When it comes to art, I play with photography. And for adventure, I enjoy exploring places (Journey of J.) and activities (100 Things I Learned as an Everyday Adventurer).

Stay up-to-date? Learn about new posts by feed or on Twitter.

Found a mistake? Email me, jens@meiert.com.

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Last update: September 30, 2022

Professional frontend developers produce valid HTML and CSS.