Blog
Articles on the craft of web development, particularly on HTML and CSS optimization.
The 25 Boolean Attributes of HTML
What is a Boolean, what is a Boolean attribute, how does a Boolean attribute work, and what Boolean attributes are there? Meet the Boolean attributes, from allowfullscreen to truespeed.
5 Tips to Get Your Dev Blog Running
If you know what you can deliver, if you keep at it, if you make it easy for your peers, if you talk about the effort, and if you measure and improve and employ a process, you’re likely to do well: thoughts on technical outreach.
The 4 Pillars of Good Embed Code
Embed code is third-party code to be integrated on websites and apps, like ads or social media widgets. There have been many problems with embed code for a very long time. This post covers the essence of what makes for good embed code.
The Web Development Glossary, My New Book Covering About 2,000 Key Terms for Developers
What is a BHO? Goanna? Hooking? How about a principal box? Or the Ten-Second Rule? Covering about 2,000 terms ranging from A11Y to Zsh, and including explanations from Wikipedia and the MDN Web Docs, I’m very happy to release the The Web Development Glossary.
The Frameworks Paradox
The more complex a website, the bigger the need for a framework, the less effective an external framework. This is not new, and not even a paradox because an internal—homemade—HTML/CSS framework is always an option. However—
On the Responsibility That Comes with Good JavaScript Support
According to our data, the classic idea of making sure websites and apps work without JavaScript being enabled is dead; when we look only at support requirements, this was the end of the story. It’s not, however, when we employ a broader look at JavaScript and its misuses.
Highlights from The Crowd (Gustave Le Bon)
“Crowds are only cognisant of simple and extreme sentiments; the opinions, ideas, and beliefs suggested to them are accepted or rejected as a whole, and considered as absolute truths or as not less absolute errors.”
Highlights from An Introduction to Psychology (Wilhelm Wundt)
“There cannot be the least contradiction in the idea that physical and psychical phenomena follow different laws, as long as these laws are not irreconcilable with the actual unity of the psycho-physical individual.”
Round Table
I was late to discover Round Table, but joining this fine service association was one of the greatest decisions and experiences I’ve made in my life. Here’s my story co-founding and accompanying a new table, RT 233 Alster-Milchstraße, for almost four years.
Professional Agile Leadership (PAL) Reminders and Resources
Notes, refreshers, as well as an alternative overview over Scrum.org resources for PAL certification.
HTML and CSS and the 2019 Web Almanac
The HTTP Archive’s Web Almanac is fantastic because it provides us with data about how we build what kinds of websites. While the release of the 2019 Almanac has been accompanied by some analysis, I had found it interesting to interpret the data, too.
If It Can Be Done Using an HTTP Header, Use an HTTP Header
The following is a (slightly modified) chapter from Upgrade Your HTML, which is “all about picking examples of HTML in the wild, and explaining how to make that code better.”
How Running Your Own Website Is Much Better for You Than You Think
The typical argument for why professionals don’t have their own websites is usually that they don’t want to make the commitment, and yet that misses how the disadvantages people see are actually advantages. Renewed thoughts on how running your own website is an asset.
2019
Another year, another retrospective. Factoids and data on life and work.
An HTML Optimizer’s Config for html-minifier
Jad (Joubran) asked me about my configuration for html-minifier the other week, and in a hurry I pointed him to the config I had worked out for sum.cumo. In my own projects, however, I work with a different, more ambitious setup.
When to Open Links in a New Tab
Always open links in the same tab unless doing so 1) could disrupt a process, 2) could risk data loss, or 3) could confuse the user.
On Leadership
Leadership is important, and it can be learned.
CSS: When to Use Logical Properties
Logical properties are great and long overdue. They are great because they solve an ugly problem of international, multi-directional web development in that directionality does not need to affect your writing and managing of CSS anymore…
Website Optimization Measures, Part IX
Random improvements and notes around compression and caching, content security and feature policies, IndieWeb markup, protocols in links, entity references, image formats, and ISBNs in URL paths.
Upgrade Your HTML (the Booklet)
I’ve written a very short book on improving HTML code: Upgrade Your HTML. Upgrade Your HTML is about one thing: Picking examples of HTML in the wild, and explaining how to make that code better. Kindly. Constructively. Thoroughly, as finding a balance between detail and brevity permits.
On Writing Better Markup
As HTML is so important and yet also so easy, everyone writes HTML, and everyone says they can write HTML. And with that they don’t just mean they are able to write HTML, but that they write good HTML, where “good” means “high quality.” That would be great news.
The Developer’s Fallacy of Close Collaboration with Designers
Working closely with designers makes sense and is awesome, notably for mutual understanding and efficiency. And yet there are also good reasons not to work closely with designers. For developers it’s important, for otherwise foolish, to be aware.
Definition of Web Developer
Web developer, n.: A person who—
“Must Work Without JavaScript”
That websites should work without JavaScript has a long professional tradition, and for apps much the same has been asked for. Yet with the success and ubiquity of scripting, how relevant is it to make sure sites and apps “work without JavaScript”?
Optional HTML: Everything You Need to Know
Optional HTML can be left out to improve performance, to guide code comprehension, and to hone the craft. An overview over all optional tags, rules around quotes for attribute values, and omissible attribute value defaults, as well as notes on pitfalls and tools.
Biography
I’m Jens Oliver Meiert, and I’m a web developer and author. I love trying things (sometimes involving philosophy, art, or adventure).
As a web developer I specialize in getting the maximum out of HTML and CSS, contribute to technical standards, and write books (like The Little Book of HTML/CSS Frameworks, On Web Development, CSS Optimization Basics, Upgrade Your HTML, and The Web Development Glossary).
In philosophy I focus on metaphysics (except in How to Work on Oneself). When it comes to art I mostly play with photography. For adventure I enjoy exploring both places (Journey of J.) and activities (100 Things I Learned as an Everyday Adventurer).