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Getting To Know The MutationObserver API

8.5.2019
MutationObserver watches the DOM, specifically the places you tell it to, like: document.querySelector('#watch-this'); ...and it can tell you (trigger a callback) when stuff happens — like when a child is added, removed, changed, or a number of other things. I used it just the other day...

Simulating Mouse Movement

15.4.2019
If you've ever had to display an interactive animation during a live talk or a class, then you may know that it's not always easy to interact with your slides and while talking. This happened to me when I needed to show this particles demo to my students. I didn't want to have to stay next to...

Creating a Custom Element from Scratch

20.3.2019
In the last article, we got our hands dirty with Web Components by creating an HTML template that is in the document but not rendered until we need it. Next up, we’re going to continue our quest to create a custom element version of the dialog component below which currently only uses...

Control Icons with Font Size

27.2.2019
Here’s a nifty trick from Andy Bell that now seems a little obvious in hindsight: if you set an SVG to have a width and height of 1em then you can change the size of it with the font-size property. Try and change the font-size on the body element below to see the icon scale with the text: ...

Colorful Typographic Experiments

21.2.2019
There have been some interesting, boundary-pushing typography-related experiments lately. I was trying to think of a joke like "somethings in the descenders" but I just can't find something that will stand on its own leg without being easy to counter. Codrin Pavel created a fascinating multi-color...

Quick! What’s the Difference Between Flexbox and Grid?

12.2.2019
Let's go rapid fire and try to answer this question with quick points rather than long explanations. There are a lot of similarities between flexbox and grid, starting with the fact that they are used for layout and much more powerful than any layout technique that came before them. They...

Slide an Image to Reveal Text with CSS Animations

29.1.2019
I want to take a closer look at the CSS animation property and walk through an effect that I used on my own portfolio website: making text appear from behind a moving object. Here’s an isolated example if you’d like to see the final product. Here’s what we're going to work with: See the...

Microsoft odstavuje Windows Media Center. A na kahánku má i Windows Media Player

28.1.2019
Windows Media Center je prostředí, kterým chtěl Microsoft dostat operační systém do obýváků. Nadstavba pro Windows umožňovala pohodlné ovládání dálkovým ovladačem a přístup k multimediálnímu obsahu v počítači. Prostředí už není od nástupu Windows 10 dále vyvíjeno, nyní mu končí podpora online

Centering: The Newest Coolest Way vs. The Oldest Coolest Way

20.6.2018
This isn't a comprehensive guide to centering things. We have that! This is just a little observation about old and new. One of the trickier things related to centering in CSS is when you need to center both vertically and horizontally and you don't know the width or height of what you...

Vertically Centering with Flexbox

8.5.2018
Vertically centering sibling child contents is a task we’ve long needed on the web but has always seemed way more difficult than it should be.  We initially used tables to accomplish the task, then moved on to CSS and JavaScript tricks because table layout was horribly inefficient —...

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