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Restricting a (pseudo) element to its parent’s border-box

2.7.2019
Have you ever wanted to ensure that nothing of a (pseudo) element gets displayed outside its parent's border-box? In case you're having trouble picturing what that looks like, let's say we wanted to get the following result with minimal markup and avoiding brittle CSS. The desired result. This...

Making width and flexible items play nice together

1.7.2019
The short answer: flex-shrink and flex-basis are probably what you’re lookin’ for. The long answer Let’s say you want to align an image and some text next to each other with like this: Now let's say you reach for flexbox to make it happen. Setting the parent element to display: flex; is a good...

Different Approaches for Creating a Staggered Animation

27.6.2019
Animating elements, at its most basic, is fairly straightforward. Define the keyframes. Name the animation. Call it on an element. But sometimes we need something a little more complex to get the right “feel" for the way things move. For example, a sound equalizer might use the same animation...

Different Approaches for Creating a Staggered Animation

27.6.2019
Animating elements, at its most basic, is fairly straightforward. Define the keyframes. Name the animation. Call it on an element. But sometimes we need something a little more complex to get the right “feel" for the way things move. For example, a sound equalizer might use the same animation...

Drawing Realistic Clouds with SVG and CSS

13.6.2019
Greek mythology tells the story of Zeus creating the cloud nymph, Nephele. Like other Greek myths, this tale gets pretty bizarre and X-rated. Here’s a very abridged, polite version. Nephele, we are told, was created by Zeus in the image of his own beautiful wife. A mortal meets Nephele, falls...

Movin’ Modals Along a Path

4.6.2019
Modals always be just appearin'. You might see one once in a while that slides in from one of the edges, or uses some kind of scale/opacity thing to appear from "above" or "below." But we can get weirder than that. Why not have them come in on an offset-path? Just a swoopy arc is kinda fun. ...

Prevent Page Scrolling When a Modal is Open

3.6.2019
Please stop me if you've heard this one before. You open a modal, scroll through it, close it, and wind up somewhere else on the page than you were when you opened the modal. That's because modals are elements on a page just like any other. It may stay in place (assuming that's what it's meant...

Customer Satisfaction Surveys with Wufoo

30.5.2019
I was once tasked to create a makeshift customer service survey that would allow an employee to receive a customer call and send a survey to the custom once the call ended. The goal was to track customer satisfaction, which is a totally legit thing to want. There are some solutions out there that...

[článek] Zkušenosti s DVB-T na set-top boxu O2 TV: podrobnější představení

29.5.2019
[3 minuty čtení] Set-top box od O2 vám může posloužit i tehdy, když chcete sledovat pozemní digitální vysílání DVB-T nebo DVB-T2. Uživatelské prostředí je příjemné, musíte se v něm ale obejít bez některých pokročilých funkcí. Co přijímač umí a jak vypadá jeho praktické používání, přiblížíme v tomto...

Change Color of SVG on Hover

13.5.2019
There are a lot of different ways to use SVG. Depending on which way, the tactic for recoloring that SVG in different states or conditions — :hover, :active, :focus, class name change, etc. — is different. Let's look at the ways. Inline SVG Inline SVG is my favorite way to use...

The Thinking Behind Simplifying Event Handlers

9.5.2019
Events are used to respond when a user clicks somewhere, focuses on a link with their keyboard, and changes the text in a form. When I first started learning JavaScript, I wrote complicated event listeners. More recently, I've learned how to reduce both the amount of code I write and the number...

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...

Using “box shadows” and clip-path together

11.4.2019
Let's do a little step-by-step of a situation where you can't quite do what seems to make sense, but you can still get it done with CSS trickery. In this case, it'll be applying a shadow to a shape. You make a box .tag { background: #FB8C00; color: #222; font: bold 32px system-ui; padding:...

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