Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Accessibility tips & tricks for CSS developers
Search
Marco Solazzi
March 25, 2016
Programming
1
520
Accessibility tips & tricks for CSS developers
Marco Solazzi
March 25, 2016
Tweet
Share
More Decks by Marco Solazzi
See All by Marco Solazzi
Automation Strategies for Baseline Accessibility - Merpay Tech Talk 2021
dwightjack
0
400
Inclusive UI development tips & tricks
dwightjack
0
200
CSS Workflow for Grown-ups
dwightjack
1
530
Introducing AngularJS - Frontenders Verona
dwightjack
0
700
Other Decks in Programming
See All in Programming
ニーリーにおけるプロダクトエンジニア
nealle
0
710
コードの90%をAIが書く世界で何が待っているのか / What awaits us in a world where 90% of the code is written by AI
rkaga
50
32k
0626 Findy Product Manager LT Night_高田スライド_speaker deck用
mana_takada
0
140
dbt民主化とLLMによる開発ブースト ~ AI Readyな分析サイクルを目指して ~
yoshyum
2
240
プロダクト志向ってなんなんだろうね
righttouch
PRO
0
170
RailsGirls IZUMO スポンサーLT
16bitidol
0
130
Result型で“失敗”を型にするPHPコードの書き方
kajitack
4
560
すべてのコンテキストを、 ユーザー価値に変える
applism118
2
1.1k
地方に住むエンジニアの残酷な現実とキャリア論
ichimichi
5
1.5k
Select API from Kotlin Coroutine
jmatsu
1
210
AIコーディング道場勉強会#2 君(エンジニア)たちはどう生きるか
misakiotb
1
270
Team operations that are not burdened by SRE
kazatohiei
1
290
Featured
See All Featured
Rails Girls Zürich Keynote
gr2m
94
14k
Building a Scalable Design System with Sketch
lauravandoore
462
33k
VelocityConf: Rendering Performance Case Studies
addyosmani
331
24k
How to Ace a Technical Interview
jacobian
277
23k
We Have a Design System, Now What?
morganepeng
53
7.7k
Art, The Web, and Tiny UX
lynnandtonic
299
21k
Imperfection Machines: The Place of Print at Facebook
scottboms
267
13k
How GitHub (no longer) Works
holman
314
140k
Documentation Writing (for coders)
carmenintech
72
4.9k
Measuring & Analyzing Core Web Vitals
bluesmoon
7
500
Music & Morning Musume
bryan
46
6.6k
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
eileencodes
35
2.4k
Transcript
Accessibility tips & tricks for CSS developers Marco Solazzi -
@dwightjack CSS Day 2016 - cssday.it
About me - Senior Front-end @ AQuest - Co-founder Frontenders
Verona
HTML semantics Progressive enhancement Mobile first Responsive UX
“ … enabling as many people as possible to use
Web sites, even when those people's abilities are limited in some way. ” Accessibility https://developer.mozilla.org/en-US/docs/Web/Accessibility
“ … enabling as many people as possible to use
Web sites, even when those people's abilities are limited in some way. ” Accessibility - https://developer.mozilla.org/en-US/docs/Web/Accessibility
If you follow best practices you’re already providing some accessibility
- vision impairments - limited fine motor control - cognitive
disabilities - hearing impairments - older people (ourselves tomorrow) For whom?
Because we have to. Goverments are enforcing accessibility by legislation.
Why? - US: List of Web Accessibility-Related Litigation and Settlements (http://bit.ly/1n1JkQl) - IT: Legge Stanca (https://it.wikipedia.org/wiki/Legge_Stanca)
Because we should. Why?
“I’m going to do the website that way. If people
can’t use it they can go f**k themselves!” Everyday rant... - random world class designer / developer
“I’m going to put stairs here. If people can’t climb
them they can go f**k themselves!” What if... - random world class architect
Websites are like shops, restaurants and theatres: if you leave
me out you don’t deserve my money.
- unreadable beauty - table syndrome - outline dilemma -
out of sight... How?
Unreadable beauty
- blindness - low vision - color blindness Unreadable beauty
Unreadable beauty award-winning flash site, mid 2000
Unreadable beauty award-winning flash site, mid 2000
Unreadable beauty award-winning HTML site, mid 2010
Unreadable beauty award-winning HTML site, mid 2010
1. set html font-size to 100% 2. use rem fonts
and em media queries 3. high-contrast optional theme Unreadable beauty
1. set html font-size to 100% 2. use rem fonts
and em media queries 3. high-contrast optional theme Bonus: Use currentColor for flexible theming Unreadable beauty
Unreadable beauty
Unreadable beauty
Table syndrome
Every tag has its place in the world document.
Every tag has its place in the world document. …
even <ruby> - https://developer.mozilla.org/en-US/docs/Web/HTML/Element/ruby
<table>s are evil! Let’s use <div>s … and display: table
Table syndrome
<table>s are evil! Let’s use <div>s … and display: table
Problems: 1. not semantic 2. unannounced by screen-readers Table syndrome
<button>s are ugly! Let’s use <span>s and <a>s with JS
Table syndrome
<button>s are ugly! Let’s use <span>s and <a>s with JS
Problems: 1. missing focus 2. different/missing keyboard interactions Table syndrome
Table syndrome
Table syndrome
Outline dilemma
“ … provides visual feedback for links that have "focus"
when navigating a web document using the TAB key (or equivalent). ” Outline dilemma - http://www.outlinenone.com
“ … provides visual feedback for links that have "focus"
when navigating a web document using the TAB key (or equivalent). ” - http://www.outlinenone.com Outline dilemma
default outlines are ugly! - http://meyerweb.com/eric/tools/css/reset/reset200802.css Outline dilemma
default outlines are ugly! - http://meyerweb.com/eric/tools/css/reset/reset200802.css Outline dilemma
Outline dilemma
Outline dilemma
Outline dilemma
If you really can’t stand outline, remove it just for
mouse / touch interactions. Outline dilemma - https://github.com/lindsayevans/outline.js - https://www.paciellogroup.com/blog/2012/04/how-to-remove-css-outlines-in-an- accessible-manner/
Out of sight
How many ways to hide something? 1. opacity: 0 2.
visibility: hidden 3. display: none Out of sight
How many ways to hide something? 1. opacity: 0 2.
visibility: hidden 3. display: none ← accessibility friendly Out of sight
Options for element transitions: 1. display: none onComplete 2. tabindex=”-1”
for every link / button Out of sight
Don’t speak bonus:
Don’t speak
Don’t speak Warning: totally unreliable!
Don’t speak Always prefer SVGs (even for icons)
I want more! Resources - http://a11yproject.com/ - https://www.paciellogroup.com/ - http://webaim.org/
- http://a11yweekly.com/ People - https://twitter.com/LeonieWatson - https://twitter.com/stevefaulkner
Thanks