Diigo Bookmarks 05/20/2019

2019年5月20日 著

• Subgrid - CSS: Cascading Style Sheets | MDN

  "Level 2 of the CSS Grid Layout specification includes a subgrid value for grid-template-columns and grid-template-rows. This guide details what subgrid does, and gives some use cases and design patterns that are solved by the feature."

• CSS { In Real Life } | Debugging CSS Grid - Part 2: What the Fr(action)?

  "Fr units are actually the simplest units to work with in Grid, and for the most part cause much less pain than using percentages and calc() for your grid tracks! Don't be put of using them!"

• HTTP/2 progressive image streaming

  "This idea of streaming of progressive images in parallel is as old as HTTP/2 itself, but it needs special handling in low-level parts of web servers, and so far this hasn't been implemented at a large scale."

• A report from the AMP Advisory Committee Meeting - Terence Eden's Blog

  "This is legally and morally troubling. AMP need to do much better at testing accessibility. I also think that their validator should refuse to pass a page if it doesn't meet a threshold of automatic accessibility testing."

• A new (and easy) way to hide content accessibly | Zell Liew

  "we only want to hide content in three different contexts: 1. Hide it completely 2. Hide it visually 3. Hide it from screen readers When we say hide content accessibly, we effectively mean option #2 (hiding content visually, but not from screen readers and keyboard users)."

• Number of people with vision disabilities to triple by 2050: Study

  "Researchers said action was need on a global, regional and country level to slow the acceleration of vision impairment."