January 2012 - Broken Links Archive

DRY vs Media Queries ‚ÄĒ a use case for Mixins

CSS pre-proces¬≠sors like Sass and LESS extend CSS in many use¬≠ful ways, not least by allow¬≠ing you to use vari¬≠ables in your code either as sin¬≠gle val¬≠ues or blocks of mul¬≠ti¬≠ple property/value pairs, called Mix¬≠ins. So use¬≠ful are these that devel¬≠op¬≠er Tab Atkins pro¬≠posed to the W3C that they be adopt¬≠ed into CSS itself, but they were reject¬≠ed as no suit¬≠able use cas¬≠es were seen.

I think I’ve found a sce­nario in which, while the use of Mix­ins aren’t vital, they’re cer­tain­ly very use­ful, and it’s because of one of the core prin­ci­ples of cod­ing: DRY (Don’t Repeat Yourself).

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The new (and hopefully final) linear gradient syntax

The lat¬≠est Work¬≠ing Draft of the CSS3 Image Val¬≠ues and Replaced Con¬≠tent mod¬≠ule was released last month, and con¬≠tains some changes to the gra¬≠di¬≠ent syn¬≠tax¬≠es ‚ÄĒ for what you‚Äôd hope would be the last time. The updat¬≠ed syn¬≠tax¬≠es are a lit¬≠tle more log¬≠i¬≠cal, but offer the same flexibility.

Fire­fox 10, which is due for release in a few weeks, will see an imple­men­ta­tion of the updat­ed linear-gradient and repeating-linear-gradient func­tions, so in this arti­cle I’ll take a look at those, and write a fol­low-up when the radi­al gra­di­ent updates are avail­able for use. Update: Here’s the com­pan­ion arti­cle on radi­al gra­di­ents.

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My Happy New Year

One more post about things I‚Äôve writ¬≠ten else¬≠where, then I‚Äôll be back to writ¬≠ing orig¬≠i¬≠nal con¬≠tent here again‚Ķ

Anoth­er pair of arti­cles by me got pub­lished today; they’re both introduction-level:

Adven­tures In The Third Dimen­sion, on Smash­ing Mag­a­zine, is a begin­ners guide to CSS 3D Trans­forms, explain­ing the syn­tax with a few demos; and for Ubel­ly I wrote The Five-Minute Guide to CSS Ani­ma­tions, which does the same job for CSS Animations.

I‚Äôve an arti¬≠cle com¬≠ing up for .net Mag¬≠a¬≠zine soon; it‚Äôs called 10 CSS Tech¬≠niques for 2012, it‚Äôll be the cov¬≠er arti¬≠cle, and I‚Äôm very excit¬≠ed about as I wrote it in col¬≠lab¬≠o¬≠ra¬≠tion with Andreas Johans¬≠son, Har¬≠ry Roberts, Lea Ver¬≠ou, Nico¬≠las Gal¬≠lagher, and Paul Adam Davis, all of whom do great work.

After that I have two more arti¬≠cles to write, should be tech edit¬≠ing a book on CSS3, then prob¬≠a¬≠bly start¬≠ing work on my own sec¬≠ond book. 2012 is going to be a very busy year.


Aside

I‚Äôve updat¬≠ed my Speak¬≠ing page to include more con¬≠fer¬≠ences, more videos, and a lit¬≠tle on my speak¬≠ing require¬≠ments and pref¬≠er¬≠ences. I‚Äôm plan¬≠ning to cut down on the num¬≠ber of talks I give in 2014 (twelve is too many), but am always open to inter¬≠est¬≠ing offers and oppor¬≠tu¬≠ni¬≠ties, so please get in touch if you‚Äôre organ¬≠is¬≠ing an event.

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