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
530
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
410
Inclusive UI development tips & tricks
dwightjack
0
210
CSS Workflow for Grown-ups
dwightjack
1
540
Introducing AngularJS - Frontenders Verona
dwightjack
0
720
Other Decks in Programming
See All in Programming
テストコードはもう書かない:JetBrains AI Assistantに委ねる非同期処理のテスト自動設計・生成
makun
0
360
Deep Dive into Kotlin Flow
jmatsu
1
350
Navigating Dependency Injection with Metro
zacsweers
3
1k
Oracle Database Technology Night 92 Database Connection control FAN-AC
oracle4engineer
PRO
1
460
基礎から学ぶ大画面対応(Learning Large-Screen Support from the Ground Up)
tomoya0x00
0
1.7k
The Past, Present, and Future of Enterprise Java
ivargrimstad
0
390
CJK and Unicode From a PHP Committer
youkidearitai
PRO
0
110
時間軸から考えるTerraformを使う理由と留意点
fufuhu
16
4.8k
奥深くて厄介な「改行」と仲良くなる20分
oguemon
1
550
AWS発のAIエディタKiroを使ってみた
iriikeita
1
190
スケールする組織の実現に向けた インナーソース育成術 - ISGT2025
teamlab
PRO
1
120
Testing Trophyは叫ばない
toms74209200
0
880
Featured
See All Featured
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
12
1.1k
The Art of Programming - Codeland 2020
erikaheidi
56
13k
Designing for Performance
lara
610
69k
Automating Front-end Workflow
addyosmani
1370
200k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
231
53k
The Straight Up "How To Draw Better" Workshop
denniskardys
236
140k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
131
19k
Testing 201, or: Great Expectations
jmmastey
45
7.7k
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
229
22k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
23
1.4k
Statistics for Hackers
jakevdp
799
220k
Fashionably flexible responsive web design (full day workshop)
malarkey
407
66k
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