Bootstrap
A sleek, intuitive, and powerful mobile first front-end framework for faster and easier web development.
A sleek, intuitive, and powerful mobile first front-end framework for faster and easier web development.
Chrome DevTools is a set of authoring, debugging, and profiling tools built into Google Chrome.
Test color contrast compliance with the Web Content Accessibility Guidelines (WCAG) by the World Wide Web Consortium (W3C).
Email client usage worldwide.
📙 Emojipedia — 😃 Home of Emoji Meanings 💁👌🎍😍.
The iconic font and CSS toolkit.
Making the web more beautiful, fast, and open through great typography.
Protect your website from spam and abuse while letting real people pass through with ease.
Sehen Sie sich aktuelle Trends, Daten und Visualisierungen von Google an.
Geteiltes Wissen für das offene Web.
This is a central resource for all things related to Open Source CMS.
SEO ist ein Akronym für „Search Engine Optimization“ (Suchmaschinenoptimierung) oder für „Search Engine Optimizer“ (Suchmaschinenoptimierer).
Cascading Style Sheets (CSS) und (X)HTML-Dokumente mit CSS validieren.
Check the markup (HTML, XHTML, …) of Web documents.
W3Techs provides information about the usage of various types of technologies on the web.
GenerateWP – Delightful tools for WordPress Developers
Das World Wide Web Consortium (W3C) ist ein internationales Konsortium, in dem Mitgliedsorganisationen, ein fest angestelltesTeam, und die Öffentlichkeit gemeinsam daran arbeiten, Web-Standards zu entwickeln.
A free site where you can search the Web for sound effects.
Get in-depth information on how to design successfully for Apple platforms with these standards and principles.
This document provides guidelines for the design and user experience of applications for the family of Amazon Fire TV devices.
Up and running with material design.
Material icons are beautifully crafted, delightful, and easy to use in your web, Android, and iOS projects.