CSS loading animations with minimal effort!

Quelques ressources utiles pour le développement web, concernant la partie front-end (HTML/CSS notamment) à destination des novices et personnes expérimentés.

Colors

COLOURlovers: User created & shared color palette inspiration

ColorPicker: Online Color Picker Tool

Color Hex: A free color tool providing information about any color

Flat UI Colors: Web app helps you to copy the colors from Flat UI

Contrast Ratio: Easily calculate color contrast ratios

Color Safe: Color palettes based on WCAG Guidelines

Color Contrast Checker: Check color contrast by analyzing difference between foreground and a background color.

Colllor: Color palette generator

Paletton: Tool for creating color combinations

Colorpeek: Quickly preview, share and convert one or more CSS colors, including hex, RGB, HSL, RGBA and color keywords.

Colourcode: Online designer tool, which allows you to easily and intuitively combine colours.

Chrome Daltonize!: Daltonization is a technique of exposing details to color-blind users, allowing them to see what they otherwise would have missed.

Flat UI Color Picker: Flat Color Picker which gives you the perfect colors for flat designs.

SassMe: A Tool for Visualizing SASS Color Functions

HEX To RGB: Convert Hex color to RGB.

HSL to RGB: HSL to RGB / RGB to HSL converter.

Colour Scheme Calculator: Choose a starter color to calculate its color wheel including triad, complementary, analogous, and split complementary colours, plus saturation and lightness variations.

CSS Generators

Ultimate CSS Gradient Generator: CSS gradient generator

EnjoyCSS: All in one CSS generator

CSS MenuMaker: Create responsive website navigation

On/Off Flip switch: Generate CSS3 On/Off flip switches

CSSmatic:Gradient, border radius, box shadow & noise texture generator

CSS Triangle: CSS triangle generator

CSS Arrow Please: CSS arrow generator

Patternify: A CSS Pattern Generator

CSS3 Patterns Gallery: CSS3 patterns gallery

Critical Path CSS Generator: Speed up your page render time

Button Generator: CSS button generator

Layout Generator: Create CSS layout

Tridiv: Web-based editor for creating 3D shapes in CSS

Trianglify: Generate colorful triangle meshes that can be used as SVG images and CSS backgrounds

Delaunay Triangle: Triangle pattern maker that can be used as background

Bear CSS: Generates a CSS template containing all the HTML elements, classes & IDs defined in your markup

Stylie: A fun CSS animation tool

Calculator & Converter

PXtoEM: Convert pixels to EM

DPI Love: Find DPI/PPI of any screen

CSS Inliner:Automatically inline your email’s CSS

Code Beautify: Beautify, Validate, Minify, Analyze and Convert your JSON, XML, JavaScript, CSS, HTML, Excel

Pixel Density Converter: Tells you how to scale graphics between four density groups.

Is This Retina?: DPI/PPI Display calculator

Specificity Calculator:A visual way to understand CSS specificity

NTH-Test: nth-child and nth-of-type Tester

Typography & Font

Google Fonts: Open source web fonts

Font Squirrel: Hand picked free web fonts

Dafont: Archive of freely downloadable fonts

Font Space: Download free fonts

Type Genius: Find the perfect font combo

Golden Ratio Typography Calculator: Discover the perfect typography for your website

What Font Is: Identify font from a image

Typetester: Compare Web fonts from Adobe Edge, Google and Typekit

Tiff: Find out difference between Google fonts

Wordmark.it: Preview the output of fonts for a selected word

TypeWonder: Test web fonts on any live website

Fit Text: A jQuery plugin for inflating web type

Icons

Font Awesome: Scalable vector icons that can instantly be customized

Material Design Icons: 750 glyphs Material Design system icons pack by Google Design

Iconogen: Generate favicons, Windows 8 Tiles, Apple Touch icons, Android and iOS icons

Marka: Beautiful transformable icons

Maki: Icon set for web cartography

Fontello: Icon font generator

Fontastic: Create your own icon font

Entypo: A suite of 411 carefully crafted premium pictograms by Daniel Bruce

Typicons: Free-to-use vector icons embedded in a webfont for easy use in your user interfaces

Iconmonstr: A large collection of glyph icons from a German artist

Octicons: Icon font launched by GitHub

GlyphSearch: Search for icons from Font Awesome, Glyphicons, IcoMoon, Ionicons, and Octicons

Analyze Website Style

Stylify Me: Overview of the style guide of a site, including colors, fonts, sizing and spacing

Type-o-matic: A browser extension that finds all the fonts on a page

Editor

CodePen: Show case of advanced techniques with editable source code

JSFiddle: Test and share JavaScript, CSS, HTML or CoffeeScript online

JS Bin: A live pastebin for HTML, CSS & JavaScript and a range of processors

CSSDeck: Collection of Awesome CSS and JS Creations to help out frontend developers and designers

Dabblet: An interactive CSS playground and code sharing tool

Liveweave: Liveweave is a HTML5, CSS3 & JavaScript playground for web designers and developers

Adobe Edge Reflow: Design tool that supplements your design workflow to help you create beautiful responsive designs for all screen sizes

webflow: Drag-and-drop website builder for creating professional responsive websites

Macaw: Provides the same flexibility as your favorite image editor but also writes semantic HTML and remarkably succinct CSS

Developer Tools

Chrome DevTools: Set of web authoring and debugging tools built into Google Chrome

Grunt: The JavaScript Task Runner for automating tasks

Bower: Solution to the problem of front-end package management

Yeoman: A generator ecosystem, basically a plugin that can be run with the `yo` command to scaffold complete projects or useful parts

Can I Use: Up-to-date browser support tables for support of front-end web technologies

HTML5 Please: Look up HTML5, CSS3 & find out if they are ready for use

CSS Values: CSS Reference, Properties and Values

CSS Triggers: An invaluable reference on how CSS affects performance

Testing

W3C Markup Validation: Checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML

HTML_CodeSniffer: Checks HTML source code and detects violations of a defined coding standard

W3C CSS Validation: Check (CSS) and (X)HTML documents with style sheets

CSS Lint: Points out problems with your CSS code

JS Lint: JavaScript program that looks for problems in JavaScript programs

PhantomCSS: Visual/CSS regression testing with PhantomJS

CSS Critic: Regression testing of CSS

DiagnostiCSS: Visually detect any potentially invalid or inaccessible HTML markup

QUnit: A JavaScript Unit Testing framework

Dromaeo: JavaScript Performance Testing

Opera Mobile Classic Emulator: Use the profile selector to spawn multiple Opera Mobile Classic instances with a defined resolution, pixel density, user interface

Performance

Pingdom Website Speed Test: Test & analyze the load time of a live page

WebPagetest: Website speed test from multiple locations around the globe

PageSpeed Insights: Analyzes website and suggest ways to make it load faster

GTmetrix: Grade site’s performance and provides recommendations to fix these issues

YSlow: Analyzes & offers suggestions for improving the page’s performance

Perfmap: A performance heatmap of resources loaded in the browser

Optimization

CSSCSS: Let you know which rulesets have duplicated declarations

Helium: javascript tool to scan your site and show unused CSS

CSS Tidy: Opensource CSS parser and optimiser

CSS Compressor: Compress your CSS to increase loading speed

CSS Dig: Take a look at all your CSS properties, their frequency and variations

JavaScript Minifier: Minify your JavaScript

FF Subsetter: Reduce the font file size to optimize bandwidth usage

Compressor.io: Reduce the size of your images while maintaining a high quality

Prefix free: add the current browser’s prefix to any CSS code only when it’s needed

Sprite Cow: Generate CSS for sprite sheets

TinyPNG: Advanced lossy compression for PNG images

Adaptive Images: Detects your visitor’s screen size and automatically creates, caches, and delivers device appropriate re-scaled versions of images

Bibliothèque d’animation CSS

animatie.css : https://animate.style/

Animista: https://animista.net/

Vivify : https://github.com/Martz90/vivify

Magic animation CSS3 : https://www.minimamente.com/project/magic/

Cssanimation: http://cssanimation.io/

Hover.css: https://ianlunn.github.io/Hover/

Wickedcss: https://kristofferandreasen.github.io/wickedCSS/

Three Dots : https://nzbin.github.io/three-dots/

Csshake: http://elrumordelaluz.github.io/csshake/

Angrytools: https://angrytools.com/

Outils (French)

Générateur de font

Google font generator : https://fonts.google.com/#ChoosePlace:select

Dafont : https://www.dafont.com/fr/

Outils HTML

Schnaps.it : https://schnaps.it/

Scriptol : https://www.scriptol.fr/html5/

Initializr : http://www.initializr.com/

Textfixer: https://www.textfixerfr.com/html/

Générateur HTML : https://www.mesoutils.com/generateur.php

Validateur de code HTML

Validateur (X)HTML du W3C : https://validator.w3.org/

Editeur de code

Sublimtext : https://www.sublimetext.com/

Brackets: https://brackets.io/

Visual studio code: https://code.visualstudio.com/

Atom: https://atom.io/

Live editor: http://liveditor.com/index.php

Light Table : http://lighttable.com/

Editeur de code en temps réel

Codepen.io : https://codepen.io/pen/

Squarefree: https://htmledit.squarefree.com/

HTML editor: https://html-online.com/editor/

HTML code editor: https://htmlcodeeditor.com/

Livewave : https://liveweave.com/

HTML instant: https://www.htmlinstant.com/

JS bin: http://jsbin.com/welcome/130/edit?html%2Coutput=

Dabblet : https://dabblet.com/

Sites pour apprendre à coder

Openclassrooms : https://openclassrooms.com/fr/courses/1603881-apprenez-a-creer-votre-site-web-avec-html5-et-css3

Grafikart.fr: https://grafikart.fr/tutoriels/html et https://grafikart.fr/tutoriels/css

Pierre-Giraud: https://www.pierre-giraud.com/html-css-apprendre-coder-cours/

Codecademy : https://www.codecademy.com/catalog/language/html-css

JavaScript is a powerful language for building dynamic web applications, but with great power comes great responsibility. Ensuring the security and privacy of your web applications is crucial. This guide covers essential best practices to protect your applications and users.

In the fast-paced world of software development, time is of the essence, and having quick access to vital information can mean the difference between coding bliss and coding chaos. Enter cheat sheets – these invaluable resources have become a developer's best friend, serving as concise reference guides that can save countless hours of frustration and endless googling. In this article, we will explore a collection of cheat sheets tailored specifically for developers.

• Codecademy Cheat Sheets
• Awesome Cheat Sheets
• DevHints
• CSS Grid Cheat Sheet
• Grid Malven
• Flex Malven
• Easings
• Free Programming Cheat Sheets
• OverAPI

In this post, I will share some new and helpful html tags which are added in HTML5 to write easy and fast code to create complex, dynamic, engaging, and effective websites.

• dialog
• template
• picture
• meter
• output
• progress
• mark
• abbr
• time
• bdi
• wbr
• main
• figcaption

Voici comment je fais pour rajouter automatiquement une balise autour des emojis présents dans mes articles :

function niceEmoji(text) {
  const emojiRegex = /(\p{ExtPict}(\u200d\p{ExtPict}|\p{EMod})*)/gu;
  return text.replace(emojiRegex, '<span class="u-emoji">$1</span>');
}

The @counter-style CSS at-rule lets you extend predefined list styles and define your own counter styles that are not part of the predefined set of styles. The @counter-style rule contains descriptors defining how the counter value is converted into a string representation.

@counter-style - CSS Cascading Style Sheets MDN

A happy place to design and build for the web
Use the full power of CSS with an advanced visual builder, connect your frontend to any backend, and avoid hosting lock-in.

webstudio-is/webstudio: Open Source alternative to Webflow, check out our CMS launch httpswebstudio.iscms

This is a roundup of the best websites where you can find and download free HTML templates built with... Tagged with html, css, webdev, frontend.

• The first CSS framework based on Material Design 3.
• 10x smaller than others CSS frameworks based on Material Design.
• Translates Material Design to HTML semantic standard.
• Ready to use with any JS framework.
• Highly focused on DX.

Developers and Open Source authors now have many services offering free tiers, but finding them all takes time to make informed decisions.

This is a list of software (SaaS, PaaS, IaaS, etc.) and other offerings with free developer tiers.

The scope of this particular list is limited to things that infrastructure developers (System Administrator, DevOps Practitioners, etc.) are likely to find useful. We love all the free services out there, but it would be good to keep it on topic. It's a grey line sometimes, so this is opinionated; please don't feel offended if I don't accept your contribution.

This list results from Pull Requests, reviews, ideas, and work done by 1100+ people. You can also help by sending Pull Requests to add more services or remove ones whose offerings have changed or been retired.

Modern CSS Solutions for Old CSS Problems

The goal of this handbook is to provide gentle step-by-step instructions that will help you learn the key concepts of React.

Instead of covering all the theories and concepts of React in their entirety, I'll be teaching you important building blocks of the library. You'll learn about JSX, components, props, states, event handlers, creating forms, and running network requests.

Stimulus is a JavaScript framework with modest ambitions. It doesn’t seek to take over your entire front-end—in fact, it’s not concerned with rendering HTML at all. Instead, it’s designed to augment your HTML with just enough behavior to make it shine. Stimulus pairs beautifully with Turbo to provide a complete solution for fast, compelling applications with a minimal amount of effort.

Le web, tout le monde connait. C’est la toile de sites web qui est accessible à qui veut et qui est référencée par des moteurs de recherche.

Tu tapes tes mots clés sur Google et tu obtiens les sites web qui correspondent à la requête.

Le Deep web, le web profond c’est plus vaste. C’est la partie sous l’eau de l’iceberg, c’est la partie qui n’est pas référencée, que les moteurs de recherche ne connaissent pas. C’est aussi les Intranet d’entreprises.

Le Dark web est la face sombre du web. Comme tout ce qui est caché, c’est source de fantasme. Il a y sur le dark web des activités tout à fait légales et louables. Mais aussi une face sombre d’activités illégales qui donc se cachent.

Nous allons voir ici un aperçu du Dark Web, ceci afin de se faire une idée de la réalité de ce lieu, hors des fantasmes.

A collection of bad practices in HTML, copied from real websites.

Switch button animated.

For a long time, centering an element within its parent was a surprisingly tricky thing to do. As CSS has evolved, we've been granted more and more tools we can use to solve this problem. These days, we're spoiled for choice!

I decided to create this tutorial to help you understand the trade-offs between different approaches, and to give you an arsenal of strategies you can use, to handle centering in all sorts of scenarios.

Honestly, this turned out to be way more interesting than I initially thought 😅. Even if you've been using CSS for a while, I bet you'll learn at least 1 new strategy!

In this in-depth tutorial, you'll learn all about the Document Object Model, or DOM for short. As a web developer, understanding the DOM is fundamental for interacting with web browsers and creating dynamic web applications.

Sans protocoles réseau, l’Internet moderne cesserait d’exister.

Un protocole réseau est un ensemble établi de règles qui déterminent la manière dont les données sont transmises entre différents appareils du même réseau. Essentiellement, il permet aux appareils connectés de communiquer entre eux.