HTML

General

• Quick HTML Reference
• Quick Reference for HTML/CSS notation
• grid - Meaning of numbers in col-md-4 , col-xs-1 , col-lg-2 in bootstrap
• HTML Cheat Sheet
• HTML Unicode UTF-8
• Heydon/inclusive-design-checklist: Aims to be the biggest checklist of inclusive design considerations ever
• danwebb
• Grid by Example
• HTML5 UP! Responsive HTML5 and CSS3 Site Templates
• MarkSheet: a free HTML and CSS tutorial - Free tutorial to learn HTML and CSS
• Upstatement/ups-mixin-lib: Bespoke Sass mixin library from Upstatement
• Enhancing HTML 5 Lazy Loading With CSS and Minima…

Cheat Sheets

• HTML Cheat Sheet

• HTML Cheat Sheet

• URL-encoding Reference

• Front-End-Design Resources - Google Sheets

• 📙 Emojipedia — 😃 Home of Emoji Meanings 💁👌🎍😍

• linux tutorial - Google Search

• ubuntu tutorial - Google Search

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• Cat Dad On A Mission
• Marco Island Real Estate : kinavegaz : Free Download & Streaming : Internet Archive
• Learn Enough Command Line to Be Dangerous | Learn Enough to Be Dangerous

Flexbox

• A Complete Guide to Flexbox | CSS-Tricks
• Flexbox Tutorial | HTML & CSS Is Hard
• Flexbox Froggy - A game for learning CSS flexbox
• thomaspark/flexboxfroggy: A game for learning CSS flexbox 🐸

Accessibility

• ARIA is Spackle, Not Rebar | CSS-Tricks - CSS-Tricks