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
730
Other Decks in Programming
See All in Programming
はじめてのDSPy - 言語モデルを『プロンプト』ではなく『プログラミング』するための仕組み
masahiro_nishimi
3
780
アメ車でサンノゼを走ってきたよ!
s_shimotori
0
230
CSC305 Lecture 09
javiergs
PRO
0
280
All About Angular's New Signal Forms
manfredsteyer
PRO
0
200
Things You Thought You Didn’t Need To Care About That Have a Big Impact On Your Job
hollycummins
0
240
AIと人間の共創開発!OSSで試行錯誤した開発スタイル
mae616
2
750
Devoxx BE - Local Development in the AI Era
kdubois
0
130
コード生成なしでモック処理を実現!ovechkin-dm/mockioで学ぶメタプログラミング
qualiarts
0
200
あなたとKaigi on Rails / Kaigi on Rails + You
shimoju
0
170
CSC305 Lecture 06
javiergs
PRO
0
260
開発生産性を上げるための生成AI活用術
starfish719
3
1.5k
Introduce Hono CLI
yusukebe
6
2.9k
Featured
See All Featured
No one is an island. Learnings from fostering a developers community.
thoeni
21
3.5k
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
tammyeverts
10
600
The Illustrated Children's Guide to Kubernetes
chrisshort
49
51k
[RailsConf 2023] Rails as a piece of cake
palkan
57
5.9k
Fantastic passwords and where to find them - at NoRuKo
philnash
52
3.4k
ピンチをチャンスに:未来をつくるプロダクトロードマップ #pmconf2020
aki_iinuma
127
54k
What’s in a name? Adding method to the madness
productmarketing
PRO
24
3.7k
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
253
22k
Bash Introduction
62gerente
615
210k
Build The Right Thing And Hit Your Dates
maggiecrowley
37
2.9k
Building Applications with DynamoDB
mza
96
6.7k
We Have a Design System, Now What?
morganepeng
53
7.8k
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