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#css

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b_b @b_b PUBLIC DOMAIN 16/06/2020

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#Grid for layout, #Flexbox for components
▻http://ishadeed.com/article/grid-layout-flexbox-components
https://ishadeed.com/assets/grid-flex/grid-vs-flexbox-1.png
Before diving into concepts and examples, I want to make sure that you understand the main difference between #CSS grid and flexbox. CSS Grid is a multi-dimension layout module, which means that it has columns and rows. Flexbox can lay out its child items either as columns or rows, but not both
Let me be clear about that, there is no direct way to decide between CSS grid and flexbox. Adding on that, there is no correct or incorrect way to use them. This article is a kind of guide that recommends using a technique for a specific use-case. I will explain the general concept, and then go into examples, and the rest is on you to explore and experiment more.
Deciding between CSS grid and flexbox can be a bit hard (sometimes), especially if you are new to CSS. I can hear you! Here are some initial kick-off questions that I ask myself when choosing between them:
– How the component child items are displayed? Inline or as columns and rows?
– How the component is expected to work on various screen sizes?
Article intéressant avec pas mal d’exemples d’usage.

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- jeanmarie @jeanmarie CC BY-NC-SA 25/06/2020
  
  En lien avec ▻https://seenthis.net/messages/800552
  
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b_b @b_b PUBLIC DOMAIN 5/06/2020

2

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CUBE #CSS - Piccalilli
▻https://piccalil.li/blog/cube-css
https://piccalil.li/images/social-share/cube-css.png
In this article, I’m going to tell you about how I like to write CSS, which I think could help a lot of folks—at least I hope so—because I’ve used this approach, or an earlier iteration of this approach, to power massive websites, tiny blogs, mobile apps and even intranet software! This #methodology has roots in both huge projects that service millions of people all the way down to small websites and starter kits, thanks to its flexibility. This Flexibility has also enabled CUBE CSS to work in both very old and very new codebases.
The focus of the methodology is utilising the power of CSS and the web platform as a whole, with some added controls and structures that help to keep things a bit more maintainable and predictable. The end-goal is shipping as little CSS as possible—leaning heavily into progressive enhancement and modern techniques. I hope by the end of the article, it’ll help you to re-think how maybe you write CSS in the future.
What is CUBE CSS?
CUBE stands for Composition Utility Block Exception, and CSS stands for, y’know, CSS (Cascading Style Sheets). As mentioned before, the CUBE methodology is very much an extension of good ol’ CSS, rather than a reinvention. This mantra is very seriously maintained too, as the cascade and inheritance particularity play a big role.
This isn’t a heavily documented, complex methodology. Well, not now, anyway. It’s more of a concept method of organising CSS just enough to not pull to far away from the “classic” way of writing it. Really, it’s more of a thinking structure.
I’ve been all the way down the micro-optimisation rabbit hole and been down the “let’s build a library of skeletal components for all projects” (this almost never brings any benefit). On the opposite end of the scale, I’ve done all globals with direct HTML tag styling, too. Any method is extremely valid for your context and if this is how you write your CSS, keep doing what works for you and your team. All I would recommend is keeping other team’s contexts and caveats in mind before you recommend your way as absolute.
#BEM_alternative

b_b @b_b PUBLIC DOMAIN
- RastaPopoulos @rastapopoulos CC BY-NC 9/06/2020
  
  #intégration #web #html #css #méthodologie
  2-3 trucs que j’ai trouvé intéressant :
  – séparer la notion de composition (layout quoi), cela dit il ne donne aucun exemple de code et de comment l’appliquer, et au final pour moi c’est un peu comme un « module »/block particulier, dont on ne connait pas les éléments intérieurs (BEM permet sans aucun problème d’avoir des blocks dans des blocks, donc par exemple avoir un block « card » dans un block « colonnes_3 » …)
  – le fait de ranger les classes CSS dans le HTML lui-même, à la fois dans un ordre logique ET le plus important avec un séparateur, qui sera parfaitement ignoré par HTML (je trouve ça pas mal avec juste pipe | c’est léger et ça fait bien le job)
  – le fait de mettre les variantes dans des data- du HTML… ce qui les rend plus facile d’accès au JS aussi… bon j’ai trouvé ça intéressant mais ça reste à voir, si vraiment utile par rapport à des classes de variante en plus…
  
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cy_altern @cy_altern CC BY-SA 23/05/2020

1

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Image Techniques On The Web
▻https://ishadeed.com/article/image-techniques
Manipulations avancées pour la gestion des images dans les pages web :
– balises <img> et <picture>,
– attributs HTML height, width, alt et srcset
– propriétés CSS object-fit et object-position (dément !),
– embed de balise <img> dans une balise <svg> pour pouvoir jouer avec la propriété CSS preserveAspectRatio, lui associer un <title> et une <desc>
– intégration d’images SVG et utilisation de balises mask
– exemples d’utilisation d’un div avec border pour emballer une image et la faire ressortir si ton sur ton
#image #web_dev #css #svg #img #picture

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cy_altern @cy_altern CC BY-SA 23/05/2020

Four lines of CSS to make a calendar layout with CSS grid – Js Craft
▻http://www.js-craft.io/blog/four-lines-of-css-to-make-a-calendar-layout-with-css-grid
calendrier HTML avec grid + une astuce pour placer le premier jour correctement
#grid #css #calendrier

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cy_altern @cy_altern CC BY-SA 23/05/2020

1

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Masonry Layout Demo 1
▻https://codepen.io/jensimmons/full/QWjqbJj
POC par Mozilla d’une implémentation « 0 javascript / 100% CSS » pour l’organisation de blocs HTML de type « Masonry »
Le rendu attendu
https://pic.infini.fr/8UPBT8jr/YfuMQs1E.jpg
, nécessite Firefox Nightly + about:config adapté :
The CSS Working Group is currently pursuing a way to do this in 100% CSS. Mozilla is proposing one way to do this — and has implemented the idea, so that people can try it out and see what they think. This works in April/May 2020.
You can try it in Firefox Nightly. Type about:config in the URL bar. Then search for “masonry”. And set layout.css.grid-template-masonry-value.enabled to true.
This is an experimental implementation — being discussed as a possible CSS specification. It is NOT yet official, and likely will change.
Voir aussi une solution « pur CSS » OK avec les navigateurs actuels : ►https://tobiasahlin.com/blog/masonry-with-css
#masonry #0_javascript #css #firefox #poc

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cy_altern @cy_altern CC BY-SA 25/04/2020

Dark mode
▻https://blog.smarchal.com/dark-mode
Dark-mode : media-query CSS et matchMedia JS pour prefers-color-scheme
#css #dark-mode #media_query #matchMedia

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Agnès Maillard @monolecte CC BY-NC-SA 25/04/2020

1

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#CSS for internationalisation
▻https://www.chenhuijing.com/blog/css-for-i18n
https://www.chenhuijing.com/assets/images/posts/css-i18n.jpg
I’ve come across people who do not think that CSS is related to internationalisation at all, but if you think about it, internationalisation is more than translating the content on your site into multiple languages and calling it a day. There are various nuances to the presentation of that content which affect the experience of a native speaker using your site.

Agnès Maillard @monolecte CC BY-NC-SA
- cy_altern @cy_altern CC BY-SA 25/04/2020
  
  exemple d’attribut lang dans les balises et pseudo-classe CSS :lang() :
  <p>We use <em>italics</em> to emphasise words in English, <span lang="zh">但是中文则是用<em>着重号</em></span>.</p>
  
  et la CSS qui va avec :
  em:lang(zh) { font-style: normal; text-emphasis: dot; }
  
  également des exemples de la propriété CSS writing-mode
  #css #lang #internationalisation
  
  cy_altern @cy_altern CC BY-SA
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b_b @b_b PUBLIC DOMAIN 3/02/2020

1

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Seven different types of #CSS #attribute #selectors
// This attribute exists on the element [value] // This attribute has a specific value of cool [value='cool'] // This attribute value contains the word cool somewhere in it [value*='cool'] // This attribute value contains the word cool in a space-separated list [value~='cool'] // This attribute value starts with the word cool [value^='cool'] // This attribute value starts with cool in a dash-separated list [value|='cool'] // This attribute value ends with the word cool [value$='cool']
via ▻https://gist.github.com/emmabostian/ed933bc7f9711acdc565f42f1b159407
/* This attribute value has a specific value of cool or contains the word cool in a space-separated list */ [value~='cool']
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b_b @b_b PUBLIC DOMAIN 26/01/2020

1

1

On Switching from HEX & RGB to HSL
▻https://sarasoueidan.com/blog/hex-rgb-to-hsl
When you define a #color in the #HSL format, you pick a color in the form of an angle between 0 and 360. Setting the saturation to 100% and the lightness to 50% you get the purest form of that color. Tweaking the color from there on becomes very intuitive.
Using the color wheel to pick colors has many benefits. One of the main advantages of HSL is that creating color harmonies becomes a piece of cake.
Complementary colors are located across from one another on the wheel. So if you start with a color and you want to get its complimentary one, all you need to do in #CSS is to add 180° to the value of the Hue.
https://d33wubrfki0l68.cloudfront.net/4cbdc92627b6171a802d851a725c4f597e1cac8d/f51ca/images/color-harmonies-2.png
There are many color harmonies (or schemes) as the image above shows. Similar to what we did above with the complimentary scheme, triadic color schemes can be created by adding (or subtracting) 120°. You can also create analogous color combinations with 30° separating the hues. You can also create monochromatic harmonies easily, with one main hue and then tweaking the lightness to get different tints and shades of that hue. The sky is the limit.

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jeanmarie @jeanmarie CC BY-NC-SA 22/01/2020

The CSS Cascade
Or, How browsers resolve competing #CSS styles
We style our websites using CSS, which stands for Cascading Style Sheets.
But what does Cascading really mean?
▻https://wattenberger.com/blog/css-cascade
https://pbs.twimg.com/tweet_video_thumb/EOzouwSWkAAiVlt.jpg
#webdesign

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cy_altern @cy_altern CC BY-SA 6/01/2020

3

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How To Write Mobile-first CSS | Zell Liew
▻https://zellwk.com/blog/how-to-write-mobile-first-css
Présentation avec exemples des règles de la construction « mobile-first » des feuilles de style CSS.
#mobile-first #css

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cy_altern @cy_altern CC BY-SA 13/12/2019

3

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Responsive Images : comprendre srcset et sizes - Alsacreations
▻https://www.alsacreations.com/article/lire/1621-responsive-images-srcset.html
Images responsives : les attributs srcset et size de la balise <img> pour utilisation de multiples source et taille pour une image
Voir aussi : ▻https://developer.mozilla.org/fr/docs/Apprendre/HTML/Comment/Ajouter_des_images_adaptatives_%C3%A0_une_page_web
#srcset #size #img #image #responsive #adaptive_image #HTML5 #CSS

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Agnès Maillard @monolecte CC BY-NC-SA 8/11/2019

ITCSS: Scalable and Maintainable #CSS Architecture - Xfive
▻https://www.xfive.co/blog/itcss-scalable-maintainable-css-architecture
https://www.xfive.co/wp-content/uploads/2016/02/itcss2.jpg
ITCSS stands for Inverted Triangle CSS and it helps you to organize your project CSS files in such a way that you can better deal with (not always easy-to-deal with) CSS specifics like global namespace, cascade and selectors specificity.
ITCSS can be used with preprocessors or without them and is compatible with CSS methodologies like BEM, SMACSS or OOCSS.
One of the key principles of ITCSS is that it separates your CSS codebase to several sections (called layers), which take the form of the inverted triangle
#webdesign

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b_b @b_b PUBLIC DOMAIN 25/10/2019

In Defense of Utility-First #CSS | frontstuff
▻https://frontstuff.io/in-defense-of-utility-first-css
From a file size standpoint, you shouldn’t worry about repeated class names in the HTML. That’s what Gzip is for. The deflate algorithm was specifically made to handle duplicate strings, so there’s no point in trimming away characters in your HTML. The resulting file size will make little to no difference whether you use a few or a lot of classes.
On the other hand, the more a selector is repeated in a stylesheet, the more work your browser has to do to resolve all styles.
HTML “bloat” doesn’t matter, but CSS does. The network and engine don’t care how many classes you have in your HTML, but the way you write your CSS counts.

b_b @b_b PUBLIC DOMAIN
- RastaPopoulos @rastapopoulos CC BY-NC 25/10/2019
  
  Quelle horreur mais quelle horreur. Ces gens finiront dans les flammes de l’enfer après le jugement dernier.
  
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cy_altern @cy_altern CC BY-SA 14/10/2019

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Bonnes pratiques en CSS : BEM et OOCSS - Alsacreations
▻https://www.alsacreations.com/article/lire/1641-Bonnes-pratiques-en-CSS--BEM-et-OOCSS.html
Présentation de la méthode BEM pour le nommage et l’organisation des CSS.
La convention de nommage « officielle » BEM : ▻https://en.bem.info/methodology/naming-convention
Compléments à la méthode BEM : BEMIT : ▻https://www.bearstudio.fr/blog/bemit
#BEM #BEMIT #SPIP #CSS #nommage #méthode

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Agnès Maillard @monolecte CC BY-NC-SA 4/10/2019

2

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Tufte CSS
https://edwardtufte.github.io/tufte-css
Tufte #CSS provides tools to style web articles using the ideas demonstrated by Edward Tufte’s books and handouts. Tufte’s style is known for its simplicity, extensive use of sidenotes, tight integration of graphics with text, and carefully chosen typography.
Tufte CSS was created by Dave Liepmann and is now an Edward Tufte project. The original idea was cribbed from Tufte-LaTeX and R Markdown’s Tufte Handout format. We give hearty thanks to all the people who have contributed to those projects.
If you see anything that Tufte CSS could improve, we welcome your contribution in the form of an issue or pull request on the GitHub project: tufte-css. Please note the contribution guidelines.
Finally, a reminder about the goal of this project. The web is not print. Webpages are not books. Therefore, the goal of Tufte CSS is not to say “websites should look like this interpretation of Tufte’s books” but rather “here are some techniques Tufte developed that we’ve found useful in print; maybe you can find a way to make them useful on the web”. Tufte CSS is merely a sketch of one way to implement this particular set of ideas. It should be a starting point, not a design goal, because any project should present their information as best suits their particular circumstances.
#webdesign #typographie

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cy_altern @cy_altern CC BY-SA 23/09/2019

Top 10 most deadly CSS mistakes made by new and experienced developers - Painless CSS
▻https://www.painlesscss.com/top-10-css-mistakes.html
#css #erreur #bonnes_pratiques

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b_b @b_b PUBLIC DOMAIN 17/09/2019

8

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Can I email… Support tables for #HTML and #CSS in #emails
▻https://www.caniemail.com
https://www.caniemail.com/assets/images/og.png
A site that offers support info on more than 50 HTML and CSS features tested across 25 email clients.

b_b @b_b PUBLIC DOMAIN
- RastaPopoulos @rastapopoulos CC BY-NC 17/09/2019
  
  #intégration
  
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cy_altern @cy_altern CC BY-SA 6/09/2019

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Flexbox ou Grid Layout ? - Alsacreations
▻https://www.alsacreations.com/article/lire/1794-flexbox-ou-grid-layout.html
CSS : combiner Flexbox et Grid layout pour l’organisation des pages web.
Voir aussi :
– ▻https://bigint.fr/blog/2018-12-19/CSS-Grid-ou-Flexbox-les-deux-bien-sr
– ▻https://la-cascade.io/utiliser-grid-ou-flexbox
– sur MDN :
. ressources pour grid layout : ▻https://developer.mozilla.org/fr/docs/Web/CSS/CSS_Grid_Layout
►https://gridbyexample.com/examples
. ressources pour flexbox : ▻https://developer.mozilla.org/fr/docs/Web/CSS/CSS_Flexible_Box_Layout
#CSS #grid #flexbox #layout

cy_altern @cy_altern CC BY-SA
- jeanmarie @jeanmarie CC BY-NC-SA 7/09/2019
  
  Merci pour ces ressources
  #webdev #développement #intégrationweb
  
  jeanmarie @jeanmarie CC BY-NC-SA
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klaus++ @klaus 25/08/2019

1

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The “One HTML Page Challenge”, a great example of view-source culture / Boing Boing
►https://boingboing.net/2019/08/23/the-one-html-page-challenge.html
When I was interviewing developers for my latest book Coders, all the ones who grew up during the late 90s and early 00s web talked about how powerful view-source was in teaching themselves to code and make stuff online.
But web development these days has grown byzantine in its complexity; if newbie is trying to learn, view-source is liable to just cough up a slurry of incomprehensible, minified javascript. It closes off the easy onramps that existed back in the earlier days of the web.
So, projects like this one-page challenge are awesome, because the whole goal is to encourage the writing of web-site code that’s more legible and tractable.
#programmation #développement #HTML #Javascript #CSS #éducation

klaus++ @klaus
- cy_altern @cy_altern CC BY-SA 26/08/2019
  
  le site du challenge : ▻https://onehtmlpagechallenge.com
  
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Olivier Lange @olange CC BY-SA 4/08/2019

« How to create an image gallery with CSS Grid » by Abhishek Jakhar, 27.12.2018 ▻https://www.freecodecamp.org/news/how-to-create-an-image-gallery-with-css-grid-e0f0fd666a5c #css #grid #webcomponents #gallery

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Agnès Maillard @monolecte CC BY-NC-SA 11/07/2019

3

3

Jules Forrest on CodePen
▻https://codepen.io/julesforrest
https://s.cdpn.io/profiles/user/244137/512.jpg?1

Ce profil Codepen est une perle d’expérimentations typographiques avec CSS Grid (via @tixie@eldritch.cafe)

Agnès Maillard @monolecte CC BY-NC-SA
- cy_altern @cy_altern CC BY-SA 12/07/2019
  
  #css #grid #codepen
  
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ARNO* @arno ART LIBRE 28/06/2019

3

3

Tiens, une configuration en #CSS pour fabriquer directement du scroll doux (« smooth scroll ») :
scroll-behavior: smooth;

Ça permet du coup de se débarrasser des scripts JS avec lesquels on fait ça d’habitude.
Inconvénient, Safari ne le prend pas en compte (mais ça se dégrade très bien, puisque le scroll sera effectif, simplement il ne sera pas « progressif »).
Avantage, on peut le désactiver facilement avec une media query pour les gens qui ont le mal de mer :
html { scroll-behavior: smooth; } @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

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cy_altern @cy_altern CC BY-SA 9/05/2019

1

1

twolfson/gulp.spritesmith : Convert a set of images into a spritesheet and CSS variables via gulp
▻https://github.com/twolfson/gulp.spritesmith
Module Gulp générateur de sprites pour des images bitmaps (png/jpg).
Crée le fichier de sprite + le fichier css avec les classes qui vont bien.
Installation basique :
npm i gulp gulp.spritesmith --save

Exemple de fichier gulpfile.js minimum :
var gulp = require('gulp'), spritesmith = require('gulp.spritesmith') gulp.task('sprite', function () { var spriteData = gulp.src('img_entree/*.png') .pipe(spritesmith({ /* this whole image path is used in css background declarations */ imgName: 'img/sprite.png', cssName: 'css/sprite.css' })); return spriteData.pipe(gulp.dest('./')); });
#sprite #gulp #css

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cy_altern @cy_altern CC BY-SA 4/05/2019

6

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Using SVG | CSS-Tricks
►https://css-tricks.com/using-svg
Synthèse complète de toutes les méthodes pour intégrer du SVG dans une page web
#SVG #CSS #web_dev

cy_altern @cy_altern CC BY-SA
- RastaPopoulos @rastapopoulos CC BY-NC 4/05/2019
  
  #intégration #web
  
  RastaPopoulos @rastapopoulos CC BY-NC
- tofulm @tofulm 4/05/2019
  
  en complément :
  ▻https://la-cascade.io/tag/svg
  
  tofulm @tofulm
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