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I just overheard this discussion on Twitter, kicked off by Dave.

Me (coding a form): <input id=”zip” type=”number”>
Tiny Devil (appears on shoulder): Yaaas! I love the optimism, ship it!
Me: Wait, why are you here? Is this going to blow up on me? What do you know that I don’t?

— Dave SPOOPert (@davatron5000) October 9, 2018

It seems like zip codes are just numbers, right? So…

<input id="zip" name="zip" type="number">

The advantage there being able to take …

The post HTML for Zip Codes appeared first on CSS-Tricks.

Brad Frost was asking about this the other day…

Sass people, which way do you do it and why? pic.twitter.com/dIBA9BIuCO

— Brad Frost (@brad_frost) October 1, 2018

.c-btn {
&__icon {
...
}
}

I guess that’s technically “nesting” but the selectors come out flat:

.c-button__icon { }

The question was whether you do that or just write out the whole selector instead, as you would with vanilla CSS. Brad’s post gets into all the pro’s and con’s of both …

The post Sass Selector Combining appeared first on CSS-Tricks.

When I think about web performance, the first thing that comes to my mind is how images are generally the last elements that appear on a page. Today, images can be a major issue when it comes to performance, which is unfortunate since the speed a website loads has a direct impact on users successfully doing what they came to the page to do (think conversation rates).

Very recently, Rahul Nanwani wrote up an extensive guide on lazy loading images…

The post Lazy Loading Images with Vue.js Directives and Intersection Observer appeared first on CSS-Tricks.

There is a such thing as an indeterminate checkbox value. It’s a checkbox (<input type="checkbox">) that isn’t checked. Nor is it not checked. It’s indeterminate.

We can even select a checkbox in that state and style it with CSS!

Some curious points though:

1. It’s only possible to set via JavaScript. There is no HTML attribute or value for it.
2. It doesn’t POST (or GET or whatever else) or have a value. It’s like being unchecked.

So, …

The post POSTing an Indeterminate Checkbox Value appeared first on CSS-Tricks.

There’s a ton of very quotable stuff from Rachel Andrew’s latest post all about CSS and how we talk about it in the community:

CSS has been seen as this fragile language that we stumble around, trying things out and seeing what works. In particular for layout, rather than using the system as specified, we have so often exploited things about the language in order to achieve far more complex layouts than it was ever designed for. We had to, …

The post The Way We Talk About CSS appeared first on CSS-Tricks.