Blog
Articles on high quality web development, especially on HTML and CSS optimization (and, occasionally, on philosophy, art, and adventure).
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.
Sources 2019
In 2014, for idealistic transparency and enthusiastic link love, I’ve shared the feed sources I was following at the time. I’m still a huge believer in and user of feeds. As I also still like to be transparent I thought to share an update.
When to use img, img@srcset, and picture and source
I’ve disliked srcset and the whole family of ideas around it from the start because doing the same thing for the same purpose several times has usually looked like too much DX cost for too little UX gain to me. Two angles at what to use when.
13 Leadership Mistakes and How to Avoid Them
We’ve all seen approaches to team management and leadership that work, and others that don’t. A brief and scrappy list of the mistakes I’ve witnessed (or committed), together with thoughts on how not to make them.
Image Compression: How to Super-Easily Set Up Automated Base Optimization
Setting up image compression tooling is easy—and for those who want to err on the safe side automatically employing lossless compression, it’s even easier with a solution from sum.cumo: Merlin.
The Problem with Web Development Checklists, or: The Frontend Checklist, Revised
Checklists are a great way to make sure nothing gets forgotten, yet they are problematic when they contain items that aren’t important. A few general thoughts and a very specific review of The Frontend Checklist—of which 33 guidelines appear useful, and 41 not (yet).
3 Reasons Against Ad Blockers
Ad blockers are popular. Yet, they also appear to be a problem. They appear to be a problem that can be broken into three sub-problems, sub-problems that may speak not only against the use of ad blockers but their very existence.
Understanding Image Compression: Tooling and Context
Image compression plays an important role for performance optimization. It seems straight-forward but is a little deceptive, however, because it consists not of one but two parts—and it’s usually lack of understanding of one part that causes problems.
A Crime Called Favicon
16×16, 30×30, 32×32, 48×48, 57×57, 60×60, 64×64, 70×70, 72×72, 76×76, 90×90, 96×96, 114×114, 120×120, 128×128, 144×144, 150×150, 152×152, 160×160, 167×167, 180×180, 192×192, 195×195, 196×196, 228×228, 256×256, 270×270, 310×310, 558×558.
Biography
I’m Jens Oliver Meiert, and I’m a web developer and author. I love trying things, including in the fields of philosophy, art, and adventure.
As a web developer I specialize in getting the maximum out of HTML and CSS, contribute to technical standards, and write books (The Little Book of HTML/CSS Frameworks, Coding Guidelines, and Website Quality Control; On Web Development, CSS Optimization Basics, Upgrade Your HTML).
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).