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How to Get All Custom Properties on a Page in JavaScript
8.6.2020
We can use JavaScript to get the value of a CSS custom property. Robin wrote up a detailed explanation about this in Get a CSS Custom Property Value with JavaScript. To review, let’s say we’ve declared a single custom property on the HTML element:
html {
--color-accent: #00eb9b;
}
In JavaScript...
Adding CSS to a Page via HTTP Headers
4.6.2020
Only Firefox supports it, but if you return a request with a header like this:
Header add Link "<style.css;rel=stylesheet;media=all"
…that will link to that stylesheet without you having to do it in the HTML. Louis Lazaris digs into it:
[…] the only thing I can think of that could...
Global CSS options with custom properties
30.5.2020
With a preprocessor, like Sass, building a logical “do this or don’t” setting is fairly straightforward:
$option: false;
@mixin doThing {
@if $option {
do-thing: yep;
}
}
.el {
@include doThing;
}
Can we do that in native CSS with custom properties? Mark Otto shows...
The Many Bad (and Good!) Patterns for Close Buttons
27.5.2020
Manuel Matuzović details 10 bad HTML patterns for a close button. You know, stuff like this:
<a class="close" onclick="close()"×</a
Why is that bad? There is no href there, so it really isn’t a link (close buttons aren’t links). Not to mention the missing href makes this...
Responsive web design turns ten.
27.5.2020
Ethan on the thinking and research that inspired the term:
Around that time, my partner Elizabeth visited the High Line in New York City shortly after it opened. When she got back, she told me about these wheeled lounge chairs she saw in one section, and how people would move them apart for a...
Responsive web design turns ten.
27.5.2020
Ethan on the thinking and research that inspired the term:
Around that time, my partner Elizabeth visited the High Line in New York City shortly after it opened. When she got back, she told me about these wheeled lounge chairs she saw in one section, and how people...
Flexbox-like “just put elements in a row” with CSS grid
21.5.2020
It occurred to me while we were talking about flexbox and gap that one reason we sometimes reach for flexbox is to chuck some boxes in a row and space them out a little.
My brain still reaches for flexbox in that situation, and with gap, it probably will continue to do so. It’s worth noting...
Sledujeme on-line: SpaceX a jeho kosmická loď Crew Dragon se připravují na historicky první start s lidmi
19.5.2020
Kosmická loď Crew Dragon se připravuje na druhou misi. Na palubě budou dva astronauti. • Jde o první pilotovaný start z americké půdy po 9 letech a první pilotovaný let soukromé kosmické lodě. • Start je naplánován na 27. května
How to Tame Line Height in CSS
15.5.2020
In CSS, line-height is probably one of the most misunderstood, yet commonly-used attributes. As designers and developers, when we think about line-height, we might think about the concept of leading from print design — a term, interestingly enough, that comes from literally putting pieces of lead...
[aktualita] TV Nova začne vysílat on-line diskusní pořad Debaty u piva
14.5.2020
Od 18. května bude na webu televize Nova každé pondělí v 18:00 živý diskusní pořad Debaty u piva. Vzniká v rámci iniciativy televize Nova na podporu české ekonomiky Nastartujme Česko. Každý týden ve stejném čase usedne ve studiu moderátor Petr Suchoň s jedním nebo dvěma hosty z řad zástupců...
Pseudo-elements in the Web Animations API
14.5.2020
To use the Web Animations API (e.g. el.animate()) you need a reference to a DOM element to target. So, how do you use it on pseudo-elements, which don’t really offer a direct reference? Dan Wilson covers a (newish?) part of the API itself:
const logo...
Using CSS Masks to Create Jagged Edges
12.5.2020
I was working on a project that had this neat jagged edge along the bottom of a banner image.
Looking sharp… in more ways than one.
It’s something that made me think for a second and I learned something in the process! I thought I’d write up how I approached it so you can use it on your...
How I Put the Scroll Percentage in the Browser Title Bar
12.5.2020
Some nice trickery from Knut Melvær.
Ultimately the trick boils down to figuring out how far you’ve scrolled on the page and changing the title to show it, like:
document.title = `${percent}% ${post.title}`
Knut’s trick assumes React and installing an additional library. I’m sure...
min(), max(), and clamp() are CSS magic!
12.5.2020
Nice video from Kevin Powell. Here are some notes, thoughts, and stuff I learned while watching it. Right when they came out, I was mostly obsessed with font-size usage, but they are just functions, so they can be used anywhere you’d use a number, like a length.
Sometimes pretty basic usage...
Chromium lands Flexbox gap
9.5.2020
I mentioned this the other day via Michelle Barker’s coverage, but here I’ll link to the official announcement. The main thing is that we’ll be getting gap with flexbox, which means:
.flex-parent {
display: flex;
gap: 1rem;
}
.flex-child {
flex: 1;
}
That’s excellent...
Exciting Things on the Horizon For CSS Layout
8.5.2020
Michelle Barker notes that it’s been a heck of a week for us CSS layout nerds.
Firefox has long had the best DevTools for CSS Grid, but Chrome is about to catch up and go one bit better by visualizing grid line numbers and names.
Firefox supports gap for display: flex, which is great,...
`lh` and `rlh` units
5.5.2020
There’s some new units I was totally unaware of from the Level 4 spec for CSS values! The lh unit is “equal to the computed value of line-height” and rlh is the same only of the root element (probably the <html> element) rather than the current element.
Why would that...
No-Comma Color Functions in CSS
4.5.2020
There have been a couple of viral tweets about this lately, one from Adam Argyle and one from Mathias Bynes. This is a nice change that makes CSS a bit more clear. Before, every single color function actually needs two functions, one for transparency and one without, this eliminates that need...
How to Redirect a Search Form to a Site-Scoped Google Search
29.4.2020
This is just a tiny little trick that might be helpful on a site where you don’t have the time or desire to build out a really good on-site search solution. Google.com itself can perform searches scoped to one particular site. The trick is getting people there using that special syntax...
HBO Max: nová on-line služba bude konkurovat Netflixu a Amazon Prime
26.4.2020