Johannes Corrodi Katzenstein
seal-mask

Johannes Corrodi Katzenstein

Techdegree Student

Meilen, Switzerland

Besides working towards a techdegree in Front-End Development, I work as an academic teacher and researcher in philosophy of religion at the University of Z├╝rich in Switzerland.

23,659

Total Points

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Skills & Experience

  • Company

    -

  • Spoken Languages

    • German, English, Italian, French
  • Looking for work

    Yes

282 Achievements

  • Introduction
  • Custom Media Players
  • Captioning Video
  • Media Basics
  • Quiz Practice Project
  • Prototypal Inheritance
  • Constructor Functions & Prototypes
  • Introduction to Methods
  • Traversing and Manipulating the DOM with JavaScript
  • Selecting Elements and Adding Events with JavaScript
  • JavaScript and the DOM
  • CSS Animation Basics
  • Adding 3D Effects with CSS
  • Getting Started with CSS Transforms
  • Transition Timing Functions and Delays
  • Keyframe and Line Drawing Animations
  • Transitions and Transforms
  • Getting Started with CSS Transitions
  • Starting a Freelance Career
  • Getting Started with Advanced Sass
  • Debugging, Best Practices, and Production
  • Refactoring with Sass
  • Using a jQuery Carousel
  • JavaScript Objects
  • Add a Sticky Navigation Bar
  • Introducing jQuery Plugins
  • Working By Yourself
  • Hello, GitHub!
  • Art Direction with the Picture Element
  • Image Delivery with Srcset and Sizes
  • JavaScript Arrays
  • JavaScript Loops
  • Building a Layout with Flexbox
  • Flexbox Properties
  • Understanding Flexbox
  • Positioning Page Content
  • CSS Layout Project
  • Page Layout with the Float Property
  • Controlling Layout with CSS Display Modes
  • Getting Started with CSS Layout
  • JavaScript Functions
  • JavaScript Conditional Statements
  • JavaScript Numbers
  • JavaScript Variables
  • WordPress Admin Settings
  • Logo Design
  • Save for the Web
  • Adding Images and a Mockup
  • Creating a Wireframe
  • Introducing Adobe Illustrator
  • WordPress Plugins
  • WordPress Themes
  • The WordPress Customizer
  • Managing Media in WordPress
  • Managing Content in WordPress
  • An Overview of Menus in WordPress
  • SEO Plugins for WordPress
  • Enhancing the SEO of a WordPress Theme
  • Content Comes First
  • Installing MySQL Server and MySQL Workbench
  • Introduction to Data, Databases and SQL
  • Contact Forms & Mailers
  • Slim and Templates
  • Dependency Management
  • PHP Inheritance & Interfaces
  • PHP Properties & Methods
  • PHP Objects and Classes
  • More Advanced PHP for WordPress
  • PHP Basics for WordPress
  • Introduction to PHP for WordPress
  • What is the MailChimp API
  • The Production Server
  • The Staging Server
  • The Local Development Environment
  • Installing Sass and Setting up the Project
  • Responsive Patterns
  • Media Queries
  • Responsive Theory
  • Introducing Sketch
  • Hooking Into WordPress Plugins
  • Action Functions in WordPress
  • Filter Functions in WordPress
  • An Overview of Hooks in WordPress
  • Final Project: Create a Typographic Site
  • Laying Out Type for the Web
  • Basic Web Typography
  • How to Choose and Use Webfonts
  • Advanced Selectors
  • Going Further with Attribute Selectors and Pseudo-Classes
  • Selectors - Beyond the Basics
  • Introduction to Typography
  • Fundamental Concepts
  • Designing with the Latest Features
  • Basic Layout
  • The Box Model
  • Understanding Values and Units
  • Basic Selectors
  • Getting Started with CSS
  • Cleaning URLs with Rewrite Rules
  • Cleaning URLs with Subfolders
  • Integrating Validation Errors
  • Simple PHP Application: Wrapping Up The Project
  • Working with PHP Functions
  • Integrating With Paypal
  • Listing Inventory Items
  • Adding a Contact Form
  • Creating the Menu and Footer
  • WordPress User Roles
  • Launching and Supporting a WordPress Plugin
  • Building WordPress Template Tags, Widgets, and Shortcodes
  • Overview of the WordPress Customizer
  • Connecting WordPress Plugins with 3rd Party APIs
  • Building a WordPress Plugin Settings Page
  • Creating an SVG
  • Starting Right with PHP Best Practices
  • Introduction to SVG
  • PHP Internal Functions
  • PHP Returns & Closures
  • PHP Functions Basics
  • PHP Loops
  • PHP Conditionals
  • PHP Datatypes
  • PHP Data & Structure
  • PHP Getting Started
  • How WordPress Plugins Work
  • Custom Dashboard Widgets
  • Controlling Admin Navigation
  • Customizing the Login Screen
  • Admin Color Schemes
  • A Template Hierarchy Review
  • Media Templates in WordPress
  • Custom Post Type Templates
  • Archive Templates in WordPress
  • Page and Post Templates in WordPress
  • Homepage Templates in WordPress
  • Core WordPress Theme Files
  • How WordPress Templates Work
  • Finishing Your WordPress Theme
  • Custom Homepage Templates in WordPress
  • Adding a Blog to a WordPress Theme
  • Custom Post Type Templates
  • Introducing JavaScript
  • Building Out WordPress Navigation
  • Building Page Templates in WordPress
  • The WordPress Loop
  • Add Bootstrap Components to WordPress Theme
  • Create Bootstrap Styled Theme Templates
  • Setup a Bootstrap Theme
  • What's New in Foundation 5
  • Build a Website With Foundation
  • Prototyping With Foundation
  • Build a Website With Bootstrap
  • Prototyping With Bootstrap
  • WordPress Header and Footer Templates
  • Working with CSS and JS in WordPress Themes
  • Starting a WordPress Theme
  • Introduction to Front-End Frameworks
  • Launching a WordPress Site
  • WordPress and Forms
  • Extending WordPress Template Functionality
  • Converting Static HTML into WordPress Templates
  • Preparing to Code WordPress Templates
  • Getting Modular with Mixins and Functions
  • WordPress Theme Functions
  • WordPress Theme Templates
  • Content Strategy with WordPress
  • Treehouse Club - JavaScript
  • Local WordPress Development
  • Creating a Simple Drawing Application
  • Creating a Password Confirmation Form
  • Creating a Mobile Drop Down Menu
  • Creating a Simple Lightbox
  • Creating a Spoiler Revealer
  • Introduction to jQuery
  • JavaScript Objects
  • JavaScript Functions
  • JavaScript Arrays
  • JavaScript Numbers
  • JavaScript Strings
  • Introduction Variables
  • Functions
  • Objects and Arrays
  • Control Structures
  • Basics
  • WordPress Plugin Best Practices
  • Widgets and Custom Menus
  • Custom Post Types and Fields
  • Customizing WordPress Themes
  • WordPress Themes
  • Installing Wordpress
  • Structuring Tables
  • Table Basics
  • Choosing Options
  • Organizing Forms
  • Form Basics
  • Spriting with Compass
  • Compass Helper Functions
  • Compass Layout and Typography
  • Getting Started with Compass
  • Advanced Sass Concepts
  • Speeding up Workflow With Sass
  • Variables, Mixins, and Extending Selectors
  • Getting Started with Sass
  • Better SEO Through Tools
  • Better SEO Through Code
  • Better SEO Through Content
  • Introduction to SEO
  • Moving Forward with UX
  • Tools UXers Use
  • How UXers Think
  • Getting Started with WordPress
  • What Do User Experience Designers Do?
  • What is User Experience (UX)?
  • Finalizing the Project
  • Case Studies and Examples
  • The Brand Identity Design Process
  • Introduction to Brand Identity
  • Creating Home Page Assets
  • The Logo Sprint
  • Logo Design 101
  • Applying Effects
  • How to Draw in Illustrator
  •  Adding Color and Type
  • Workflow Basics
  • Slices & Save for Web
  • Vector Shapes
  • Type Tools
  • Masks Basics
  • Layer Basics
  • Workspace Basics
  • Design Foundations Final
  • Becoming a Problem Solver
  • Understanding Aesthetics
  • Introduction to Design
  • Color Theory
  • Principles
  • Elements
  • Grid Layout
  • Flexbox Layout
  • Positioning Schemes
  • Float Layout
  • Display Modes
  • Media Queries
  • CSS Animations
  • Transitions and Transforms
  • Getting Started with PHP
  • Flexbox and Multi-Column Layout
  • Gradients
  • Creating an Icon
  • Web Typography
  • Introduction to Illustrator
  • Backgrounds and Borders
  • CSS Box Model
  • Text, Fonts, and Lists
  • Values and Units
  • Owning a WordPress Site Long Term
  • WordPress Community Management
  • Working with Media in WordPress
  • Adding and Editing Content
  • Getting a WordPress Site
  • The WordPress Codex
  • Advanced Selectors
  • Selectors
  • Getting Started with CSS
  • Forms
  • Tables
  • Objects
  • Links
  • Lists
  • Text
  • Introduction
  • Debugging HTML and CSS Problems
  • Sharing a Website
  • Responsive Web Design and Testing
  • Adding Pages to a Website
  • Styling Web Pages and Navigation
  • Customizing Colors and Fonts
  • CSS: Cascading Style Sheets
  • Creating HTML Content
  • HTML First
  • Beginning HTML and CSS
  • Newbie