CSS

CSS Style Guide css-style
**Cool CSS ** cool-css

** Flexbox ** flexbox

Parameters:
(1) margin: top-left-bottom-right; 
(2) margin: top-bottom left-right; 
(3) margin: top left-right bottom; 
(4) margin: top right bottom left;  

text-shadow: 2px solid black;
text-shadow: 2px 4px solid black;
text-shadow: 2px 4px 6px solid black;

CSS Naming Convention - BEM BEM — Block Element Modifier is a methodology that helps you to create reusable components and code sharing in front-end development

responsive-image

.searchinput { outline-width: 0; }

Bootstrap 3 Navbar Collapse - Stack Overflow
Bootstrap Themes at BootstrapZero
Bootstrap 3 responsive columns of same height · Minimit
Bootstrap 3 responsive columns of same height
Full Slider - Bootstrap 3 Background Image Slider
MegaNavbar: Create beautiful responsive Mega Menu navigation for your site
Clockface timepicker for Twitter Bootstrap

Create a Parallax Scrolling Website Using Stellar.js - Tuts+ Web Design Tutorial
A Simple Parallax Scrolling Technique - Tuts+ Code Tutorial
Jazz up a Static Webpage with Subtle Parallax - Tuts+ Web Design Tutorial
Super Easy Parallax Effect with jQuery | Abduzeedo Design Inspiration
Interface Animation. The Force of Motion — Medium
Grid Animation Effects
Authentic motion - Animation - Google design guidelines
Ceaser - CSS Easing Animation Tool - Matthew Lein
A Collection of Page Transitions
Morf.js - CSS3 Transitions with custom easing functions
Magic Animations CSS3
Effeckt.css
Animate.css
Animatable: One property, two values, endless possibilities

The W3C CSS Validation Service
CSS Compressor, Free CSS Compressor and CSS Compression Tool
Free CSS | 1968 Free CSS Templates, Open Source CSS Templates and CC CSS Templates
Formalize CSS - Teach your forms some manners!
Adapt.js - Adaptive CSS
960 Grid System // Speaker Deck
Responsive Data Tables | CSS-Tricks
CSS Hacks Targeting Firefox | CSS-Tricks
Lets Learn SASS together. - CSS-Tricks Forums
Display Submenu Dropdown On Hover - CSS-Tricks Forums
CSS Masking - HTML5 Rocks
background-size: cover;
border-image-generator
Unique CSS Borders – Boring borders step aside | The Web Squeeze
Sass - Syntactically Awesome Stylesheets
Builder CSS Guide - IThemes Codex
Proportional scaling of responsive boxes using just CSS - We made you look
demosthenes.info – blog
24 ways: Adaptive Images for Responsive Designs
Code a Responsive Navigation Menu | Design Shack
CSS Vertical Center
Ultimate CSS Gradient Generator - ColorZilla.com
How to make clouds with CSS 3D - Blog - Clicktorelease
Spritebox - Generate and Create CSS from Sprite Images
A grouped pure CSS parallax demo by Keith Clark
How to Center in CSS
Don’t use IDs in CSS selectors? ❧ Oli.jp (@boblet)
CSS Lint
CSS selector for first element with class - Stack Overflow
Editing Images in CSS: Blend Modes
Icon Animations Powered by mo.js | Codrops
Crafty Responsive Tables | Playground from ZURB
CSS PANIC - js do it
Using CSS3 Media Queries for a Responsive WordPress Design
Centering in CSS: A Complete Guide | CSS-Tricks
CSS Floats Explained in 5 Questions
Forum Tip: Create a Sticky Navigation with CSS and jQuery | Treehouse Community
CSS: Just Try and Do a Good Job | CSS-Tricks
Sass Functions cheat_sheet
Image Overlay Hover Effects With CSS3 Transitions - Call Me Nick
CSS Techniques I Wish I Knew When I Started Designing Websites - noupe
CSS Grid Layout Module Level 1
CSS Custom Properties for Cascading Variables Module Level 1
HTML vs Body in CSS | CSS-Tricks
Upfront: Tweaking Elements with Custom CSS - WPMU DEV
The stacking context - Web developer guide | MDN
https://frontendmasters.com/blog/how-to-create-3d-images-in-css-with-the-layered-pattern/