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Get Viewport Lines and Columns in CodeMirror
27.11.2018
CodeMirror is an amazing utility for presenting code in a browser environment. Syntax highlighting, widgets, and a number of advanced functions make it a unique, useful tool. When using CodeMirror inside the Firefox DevTools debugger, I found that adding hundreds of column breakpoint widgets...
Stuff you can do with CSS pointer events
27.7.2018
Martijn Cuppens (the same fella with the very weird div!) has some more irresistible CSS trickery. Three of the examples are about making a child element trigger an event on a parent element (almost like the magic that is :focus-within).
Here's how I reasoned it out to myself:
You know how if...
Did you know that style and script tags can be set to display: block?
25.7.2018
The other night, Amit Patel mentioned that you can set script tags in HTML to display: block with CSS and then edit that code inline with the contentEditable attribute. This means that you can then see it all update live in the browser as you type. Shortly after, Marius Gundersen replied that...
View Source
23.7.2018
I remember seeing this Tom Dale tweet a while back. It's literally about the browser's ability to look at the HTML of the document you're looking at as it first arrived. Now the tweet is stirring up a new round of conversation.
Jonathan Snook has kind of a baby bear take:
We have the ability...
8 Digit Hex Colors
16.7.2018
One of the most requested capabilities in my early days of web development was the ability to set opacity on elements and even PNG images without the need for browser-specific CSS or hacks. Eventually we got native opacity support and even enjoyed rgba(), the ability to cite an opacity level with...
The div that looks different in every browser
13.7.2018
It's not that Martijn Cuppens used User Agent sniffing, CSS hacks, or anything like that to make this quirk div. This is just a plain ol' <div> using the outline property a la:
div {
inset 100px green;
outline-offset: -125px;
}
It looks different in different browsers because browsers...
Anatomy of a malicious script: how a website can take over your browser
13.7.2018
By now, we all know that the major tech behemoths like Facebook or Google know everything about our lives, including how often we go to the bathroom (hence all the prostate medication ads that keep popping up, even on reputable news sites). After all, we’ve given them permission to do so,...
Prototyping in the Browser
5.7.2018
Prototyping animations and interactions is vital for a number of reasons: they can make your interface feel deceptively fast, they can help focus the user on a specific task, and they can provide a better sense of the current state of your application. Is data being loaded? Is something...
How to create a logo that responds to its own aspect ratio
28.6.2018
One of the cool things about <svg> is that it's literally its own document, so @media queries in CSS inside the SVG are based on its viewport rather than the HTML document that likely contains it.
This unique feature has let people play around for years. Tim Kadlec experimented with...
Drawing Images with CSS Gradients
25.6.2018
What I mean by "CSS images" is images that are created using only HTML elements and CSS. They look as if they were SVGs drawn in Adobe Illustrator but they were made right in the browser. Some techniques I’ve seen used are tinkering with border radii, box shadows, and sometimes clip-path. You...
Uppy File Uploading
11.6.2018
One of the big tasks I was charged with at my first job was setting up a system by which any customer or potential customer (aka anonymous user) could upload PDF and image files. I had loads of constraints to deal with: browser support, server settings, variance in user tech knowledge, etc....
World wide wrist
7.6.2018
After all the hubbub with WWDC over the past couple of days, Ethan Marcotte is excited about the news that the Apple Watch will be able to view web content.
He writes:
If I had to guess, I’d imagine some sort of “reader mode” is coming to the Watch: in other words, when you open a link on your...
The web can be anything we want it to be
6.6.2018
I really enjoyed this chat between Bruce Lawson and Mustafa Kurtuldu where they talked about browser support and the health of the web. Bruce expands upon a lot of the thoughts in a post he wrote last year called World Wide Web, Not Wealthy Western Web where he writes:
...across the world...
The State of Changing Gradients with CSS Transitions and Animations
1.6.2018
Back in 2012, Internet Explorer 10 came out and, among other things, it finally supported CSS gradients and, in addition to that, the ability to animate them with just CSS! No other browser supported this at the time, but I was hopeful for the future.
Sadly, six years have passed and nothing...
Build a realtime polling web app with Next.js
29.5.2018
(This is a sponsored post.)
Learn to build a webapp that accepts user votes, using Next.js and Chart.js. Users can vote for their favorite pet, and the results are displayed in realtime on a graph in their browser using Pusher Channels.
Direct Link to Article — Permalink…
The post...
Capture and Report JavaScript Errors with window.onerror
28.5.2018
onerror is a special browser event that fires whenever an uncaught
Browser Extensions I Actually Use
27.5.2018
I use around 10 at the moment and they all provide functionality to me I find extremely important. Sometimes that functionality is every day all day. Sometimes it's once in a blue moon but when you need it, you need it.
Direct Link to Article — Permalink…
The post Browser Extensions...
CSS Environment Variables
4.5.2018
We were all introduced to the env() function in CSS when all that drama about "The Notch" and the iPhone X was going down. The way that Apple landed on helping us move content away from those "unsafe" areas was to provide us essentially hard-coded variables to use:
padding:
...
Animating Progress
30.4.2018
Jonathan Snook on the complexity of animating the <progress> element. If you’re unfamiliar, that’s the element that spits out a bar chart-like visual that indicates a position between two values:
This example has custom styles, but you get the point.
Jonathan's post shows off a method...
Practical Jokes in the Browser
28.4.2018
I know April Fool’s Day is at the beginning of this month, but hey, now you’ve got a year to prepare. Not to mention a gool ol’ practical joke can be done anytime.
Fair warning on this stuff… you gotta be tasteful. Putting someone’s stapler in the jello is pretty hilarious unless it’s somehow...