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It’s amazing that CSS has such advanced features that can do these things, but at the same time if you actually use them extensively and then I inherit your cod
by ironmagma 4y ago
It’s amazing that CSS has such advanced features that can do these things, but at the same time if you actually use them extensively and then I inherit your code, you kind of deserve a knifing.
- tangue 4y agoWorst thing is the comment (if there's any) is probably something like /* lobotomized owl typography*/
- ImaCake 4y agoWell at least you can google it… But it certainly doesn’t help. I keep my css specific to each class and try to be as explicit as possible to avoid any weird consequences.
- the_other 4y agoFor me, your approach makes the CSS harder to maintain. Pages have loads of repetition and patterns. I’d hope to find a good balance between DRYing up patterns that benefit from it, and leaving space for special cases. I find code patterns like the owl/.flow shown in the OP help greatly with that. Your approach, redefining all the properties per class, echoes avoiding using parent+subclass relationships in OO style code. Sometimes you benefit from the generalisation of a class hierarchy, sometimes you don’t. A hard rule in either direction gets in everyone's way.
- ironmagma 4y agoThe 'C' in CSS was a mistake. Consider that specificity is even a thing, and then consider that the ordering of your declarative CSS code matters. IDK, it does seem necessary to make the language workable, but there are far too many stylesheets out there with specificity hacks and !important.
- the_other 4y agoIt's almost like you're saying: because people use CSS without learning it or the problem domain it tries to solve, CSS is wrong. The "C" is an attempt to make it easy to have a mixture of generic rules that apply across the whole page/site, and specific rules for alternatives and edge cases. CSS and particularly the C make it really easy to say: button { border-radius: 20%; background-colour: teal; color: white; } button.cta { background-colour: blue; colour: yellow; } What's wrong with that? How would you do it otherwise? In a way that generalises to any HTML or XML element? Without changing HTML or XML? It's essentially a syntactic formulation of multiple inheritance. I accept that multiple inheritance is frowned upon and difficult, but it's not without precedent or practicality.
- ironmagma 4y agoIn response to "How would you do it otherwise?", like I said, it kind of seems like the language is just what it has to be in order to be workable. In other words, it seems like it designed itself to some extent. And you're right, CSS has practicality. But with almost any pre-built solution, those selectors would look something like `button.cta.xl-2-large:not(:is(.container > .button))`. At that level of complexity, which is not uncommon, you're better off just coming up with a unique ID for every situation and styling things by ID rather than trying to make them "semantic" with the selectors. That's the other problem is the mixture of selectors trying to be both semantic but also their increased expressivity changing the specificity. So if you change a selector, you might need to reorder your CSS or change a bunch of other selectors to match, which becomes untenable the more CSS you have.
- the_other 4y agoI detect a pungent "code smell", and probably a design bug via your example selector. Does the designer really want such a specific edge case to an edge case? Can they explain or justify it according to the design patterns they laid down? Why are we using such a general ".container" to specify a ".button", and whilst we're at it why do we have a "button" AND a ".button". Our codebase was going off the rails long before we reached this (admittedly scary-looking) selector. There was a better way to do what we're doing, several iterations ago, and people who cared about the ux+information design and the CSS should have caught it sooner. Go back to them and fix the problem there rather than let this horrible selector pass code review. We wouldn't stand for this in the TS/JS codebase. Why do we put up with it in the CSS? To be honest, I was never on board with the "classes everywhere" approach. IDs are fine when they identify a single item on the page. We lost something when we stopped using the language as it was designed.
- californical 4y agoThat’s kind of the opposite problem that the article mentions though — if every component has its own specific CSS, then you don’t really have CSS, you just have SS. You miss out on the cascading. I develop things at work similarly to you. JSS where every component has its own style, but you have a common `theme` file so that you can reuse the common styles via a library. But I have a certain romantic feeling about… what if we could do 90%+ of our styling using these global-per-page rules, and overriding when necessary. The simplicity is really appealing
- pictur 4y agoAny developer describing this code as bad code has probably never seen bad code.
- ironmagma 4y agoBad code is innovative for no reason. Complex for no good reason. Hard to reason about (what does foo > * + * mean? and what happens when the writing is Chinese, exactly?). These various CSS states would be much better expressed as named properties of React components. That way there would be explicit branches instead of allowing the CSS selector engine to do some implicit insanity.
- jraph 4y ago> what does foo > * + * mean? To be fair, this is the first time I see this but I immediately got it. So might not be as hard / innovative for no reason. I believe someone working often with CSS should be able to parse *+*, and if not, take the time it takes once to understand it. It's nothing that implicit. Anyway please please don't pull off a React to avoid CSS, just comment your CSS instead, or find a clearer way to write it if you prefer (:not(:first-child)). This styles documents (puts margins on paragraphs), we don't want an app for this. And even for a React app, we have a nice language to style stuff at our disposal that our browsers are incredibly efficient at evaluating, I don't think reinventing CSS in React is a good thing. React will die before CSS anyway.
- ironmagma 4y agoPlease do. I'd much rather see a system built in React with explicit logic, math, and names, than an implicit pile of obfuscated rules that are impossible to tweak without causing a cascading failure.
- xigoi 4y agoMaybe you wouldn't if you had to pay for all the electricity that's wasted by using React.
- kenmorechalfant 4y agoHow is ".stack > * + *" advanced? This is CSS 101.
- ironmagma 4y agoI was more referring to margin-block-start, var (with two arguments), gap... Also, no, sibling selector wasn't really supported very well until 2012, so only in the last ~30% of CSS's lifetime.