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Mark Wilkowske

Courses Plus Student

Member Since September 13, 2013

18,131

Total Points

•
4,722

JavaScript

4625 pts
Achievements

97 pts
Forum
•
3,214

CSS

3140 pts
Achievements

74 pts
Forum
•
1,894

HTML

1882 pts
Achievements

12 pts
Forum
•
1,617

Development Tools

1617 pts
Achievements

0 pts
Forum
•
1,273

Design

1273 pts
Achievements

0 pts
Forum
•
882

C#

882 pts
Achievements

0 pts
Forum
•
776

Security

776 pts
Achievements

0 pts
Forum
•
376

Java

376 pts
Achievements

0 pts
Forum
•
212

Business

211 pts
Achievements

1 pts
Forum
•
132

Digital Literacy

132 pts
Achievements

0 pts
Forum
•
97

AI

97 pts
Achievements

0 pts
Forum
•
45

21st Century Skills

45 pts
Achievements

0 pts
Forum

Points are earned whenever you take an important action on Treehouse.
Learn more about when and how points are earned.

230 Achievements

Achievement
Mobile-First CSS Layout

Mobile-First CSS Layout

Achieved
Jan 24, 2024
Achievement
Use LinkedIn to Grow Your Network

The 5-Step Career Checklist

Achieved
Dec 29, 2023
Achievement
Film Your Pitch Video

The 5-Step Career Checklist

Achieved
Dec 29, 2023
Achievement
Give Your Resume a Makeover

The 5-Step Career Checklist

Achieved
Dec 29, 2023
Achievement
Generative AI

AI Tools for Designers

Achieved
Dec 4, 2023
Achievement
Telling the Story

Intro to Design Thinking

Achieved
Jun 9, 2023
Achievement
Designing for your User’s "To-be"

Intro to Design Thinking

Achieved
Jun 9, 2023
Achievement
Understanding your User’s “As-is” Scenario

Intro to Design Thinking

Achieved
Jun 9, 2023
Achievement
Becoming Acquainted with Your User

Intro to Design Thinking

Achieved
Jun 7, 2023
Achievement
Becoming a Design Thinker

Intro to Design Thinking

Achieved
Jun 7, 2023
Achievement
Treehouse Festival

Achieved
Aug 5, 2020
Achievement
Programming AJAX

AJAX Basics

Achieved
Mar 31, 2020
Achievement
AJAX Concepts

AJAX Basics

Achieved
Mar 31, 2020
Achievement
Callbacks and the DOM

Callback Functions in JavaScript

Achieved
Mar 30, 2020
Achievement
Callbacks with Timers

Callback Functions in JavaScript

Achieved
Mar 30, 2020
Achievement
Introduction to Callback Functions

Callback Functions in JavaScript

Achieved
Mar 30, 2020
Achievement
Understanding Markdown

Markdown Basics

Achieved
Feb 20, 2020
Achievement
Using a jQuery Carousel

Using jQuery Plugins

Achieved
Dec 23, 2019
Achievement
Vulnerabilities: Configuration, Components, and Logging

OWASP Top 10 Vulnerabilities

Achieved
Oct 24, 2019
Achievement
Vulnerabilities: Authentication, Access, and Sensitive Data

OWASP Top 10 Vulnerabilities

Achieved
Oct 23, 2019
Achievement
Security in Practice

Security Literacy

Achieved
Oct 23, 2019
Achievement
Common Attacks and Defenses

Security Literacy

Achieved
Oct 23, 2019
Achievement
Hello Internet!

Security Literacy

Achieved
Oct 23, 2019
Achievement
Vulnerabilities: Injection, XSS, CSRF

OWASP Top 10 Vulnerabilities

Achieved
Oct 17, 2019
Achievement
The OWASP Top 10 Explained

OWASP Top 10 Vulnerabilities

Achieved
Oct 17, 2019
Achievement
Security: Solutions

Introduction to Data Security

Achieved
Oct 17, 2019
Achievement
Security: Concerns

Introduction to Data Security

Achieved
Jul 22, 2019
Achievement
Maintaining Secure Web Apps

Introduction to Application Security

Achieved
Jul 11, 2019
Achievement
Protecting Data and Keeping Attackers Out

Introduction to Application Security

Achieved
Jul 11, 2019
Achievement
Why Protect Your Web Apps

Introduction to Application Security

Achieved
Jul 11, 2019
Achievement
Understanding Flexbox

CSS Flexbox Layout

Achieved
Jun 10, 2019
Achievement
Building Out WordPress Navigation

WordPress Theme Development

Achieved
May 30, 2019
Achievement
Building Page Templates in WordPress

WordPress Theme Development

Achieved
May 28, 2019
Achievement
The WordPress Loop

WordPress Theme Development

Achieved
May 23, 2019
Achievement
WordPress Header and Footer Templates

WordPress Theme Development

Achieved
May 23, 2019
Achievement
Working with CSS and JS in WordPress Themes

WordPress Theme Development

Achieved
May 23, 2019
Achievement
Starting a WordPress Theme

WordPress Theme Development

Achieved
May 23, 2019
Achievement
A Template Hierarchy Review

The WordPress Template Hierarchy

Achieved
May 22, 2019
Achievement
Media Templates in WordPress

The WordPress Template Hierarchy

Achieved
May 22, 2019
Achievement
Custom Post Type Templates

The WordPress Template Hierarchy

Achieved
May 22, 2019
Achievement
Archive Templates in WordPress

The WordPress Template Hierarchy

Achieved
May 10, 2019
Achievement
Page and Post Templates in WordPress

The WordPress Template Hierarchy

Achieved
May 9, 2019
Achievement
Homepage Templates in WordPress

The WordPress Template Hierarchy

Achieved
May 9, 2019
Achievement
Core WordPress Theme Files

The WordPress Template Hierarchy

Achieved
May 9, 2019
Achievement
How WordPress Templates Work

The WordPress Template Hierarchy

Achieved
May 8, 2019
Achievement
WordPress Plugins

WordPress Basics

Achieved
May 8, 2019
Achievement
WordPress Themes

WordPress Basics

Achieved
May 7, 2019
Achievement
The WordPress Customizer

WordPress Basics

Achieved
May 7, 2019
Achievement
Managing Media in WordPress

WordPress Basics

Achieved
May 7, 2019
Achievement
Managing Content in WordPress

WordPress Basics

Achieved
May 7, 2019
Achievement
More Advanced PHP for WordPress

PHP for WordPress

Achieved
May 6, 2019
Achievement
PHP Basics for WordPress

PHP for WordPress

Achieved
May 3, 2019
Achievement
Introduction to PHP for WordPress

PHP for WordPress

Achieved
May 3, 2019
Achievement
First Commits

Introduction to Git

Achieved
Mar 14, 2019
Achievement
Practicing Classes

Practice Classes in JavaScript

Achieved
Jan 18, 2019
Achievement
Working with Classes in JavaScript

Object-Oriented JavaScript

Achieved
Jan 18, 2019
Achievement
Object Basics

Object-Oriented JavaScript

Achieved
Jan 17, 2019
Achievement
Introduction to Object-Oriented JavaScript

Object-Oriented JavaScript

Achieved
Jan 17, 2019
Achievement
UX Content Attributes

UX Content Strategy

Achieved
Jan 9, 2019
Achievement
UX Content Basics

UX Content Strategy

Achieved
Jan 9, 2019
Achievement
Create Function Using Arrow Syntax

Getting Started With ES2015

Achieved
Jan 7, 2019
Achievement
Using Template Literals

Getting Started With ES2015

Achieved
Jan 7, 2019
Achievement
Defining Variables With let and const

Getting Started With ES2015

Achieved
Jan 7, 2019
Achievement
Responsive Layouts With the Bootstrap Grid

Bootstrap Basics

Achieved
Jan 4, 2019
Achievement
Getting to Know Bootstrap 4

Bootstrap Basics

Achieved
Jan 4, 2019
Achievement
How to Make Wireframes on Paper

Introduction to Wireframing

Achieved
Jan 4, 2019
Achievement
What is Wireframing?

Introduction to Wireframing

Achieved
Oct 2, 2018
Achievement
Views

ASP.NET MVC Basics

Achieved
Nov 15, 2017
Achievement
Controllers

ASP.NET MVC Basics

Achieved
Nov 1, 2017
Achievement
Project Setup

ASP.NET MVC Basics

Achieved
Nov 1, 2017
Achievement
GET and POST Requests in a Browser

HTTP Basics

Achieved
Apr 18, 2017
Achievement
The Internet

How the Internet Works

Achieved
Apr 3, 2017
Achievement
Traversing the DOM

JavaScript and the DOM (Retiring)

Achieved
Mar 6, 2017
Achievement
Responding to User Interaction

Interacting with the DOM

Achieved
Feb 21, 2017
Achievement
Making Changes to the DOM

JavaScript and the DOM (Retiring)

Achieved
Feb 9, 2017
Achievement
What's New in Foundation 5

Framework Basics

Achieved
Feb 7, 2017
Achievement
Build a Website With Foundation

Framework Basics

Achieved
Feb 7, 2017
Achievement
Prototyping With Foundation

Framework Basics

Achieved
Feb 3, 2017
Achievement
Getting a Handle on the DOM

JavaScript and the DOM (Retiring)

Achieved
Nov 23, 2016
Achievement
The Browser Environment

JavaScript and the DOM (Retiring)

Achieved
Nov 22, 2016
Achievement
Methods

C# Objects

Achieved
Aug 2, 2016
Achievement
Object-Oriented Programming

C# Objects

Achieved
Jun 15, 2016
Achievement
Using Bootstrap Components

Bootstrap 4 Basics (Retired)

Achieved
Jun 8, 2016
Achievement
Responsive Layouts with the Bootstrap Grid

Bootstrap 4 Basics (Retired)

Achieved
Jun 8, 2016
Achievement
Perfect

C# Basics (Retired)

Achieved
Jun 8, 2016
Achievement
Getting to Know Bootstrap 4

Bootstrap 4 Basics (Retired)

Achieved
Jun 7, 2016
Achievement
Building Forms with Bootstrap

Bootstrap 4 Basics (Retired)

Achieved
Jun 6, 2016
Achievement
An Overview of Menus in WordPress

Custom Menu Development in WordPress

Achieved
Jun 3, 2016
Achievement
WordPress Admin Settings

WordPress Admin Settings

Achieved
May 27, 2016
Achievement
Workflows

Git Basics

Achieved
May 26, 2016
Achievement
Working With Remote Repositories

Git Basics

Achieved
May 26, 2016
Achievement
Merging

Git Basics

Achieved
May 25, 2016
Achievement
Branches

Git Basics

Achieved
May 25, 2016
Achievement
Getting Started With Git

Git Basics

Achieved
May 25, 2016
Achievement
Introduction to HTTP

HTTP Basics

Achieved
May 20, 2016
Achievement
Creating an SVG

SVG Basics

Achieved
May 20, 2016
Achievement
Introduction to SVG

SVG Basics

Achieved
May 20, 2016
Achievement
Save for the Web

Adobe Illustrator for Web Design

Achieved
May 19, 2016
Achievement
Adding Images and a Mockup

Adobe Illustrator for Web Design

Achieved
May 19, 2016
Achievement
Logo Design

Adobe Illustrator for Web Design

Achieved
May 12, 2016
Achievement
Creating a Wireframe

Adobe Illustrator for Web Design

Achieved
May 12, 2016
Achievement
Introducing Adobe Illustrator

Adobe Illustrator for Web Design

Achieved
May 11, 2016
Achievement
Perform

C# Basics (Retired)

Achieved
Jan 29, 2016
Achievement
Console I/O

C# Basics (Retired)

Achieved
Jan 28, 2016
Achievement
Prepare and Plan

C# Basics (Retired)

Achieved
Dec 30, 2015
Achievement
Understanding Flexbox and Multi-Column Layout

CSS - Beyond the Basics

Achieved
Oct 29, 2015
Achievement
Art Direction with the Picture Element

Responsive Images

Achieved
Oct 28, 2015
Achievement
Image Delivery with Srcset and Sizes

Responsive Images

Achieved
Oct 28, 2015
Achievement
Advanced Selectors

CSS Selectors

Achieved
Oct 22, 2015
Achievement
Going Further with Attribute Selectors and Pseudo-Classes

CSS Selectors

Achieved
Sep 11, 2015
Achievement
Selectors - Beyond the Basics

CSS Selectors

Achieved
Sep 11, 2015
Achievement
Build a Website With Bootstrap

Framework Basics

Achieved
Sep 3, 2015
Achievement
Prototyping With Bootstrap

Framework Basics

Achieved
Aug 31, 2015
Achievement
Introduction to Front-End Frameworks

Framework Basics

Achieved
Aug 27, 2015
Achievement
Why Version Control Matters

Git Basics

Achieved
Aug 11, 2015
Achievement
Installing Programs

Console Foundations

Achieved
Jul 24, 2015
Achievement
Environment and Redirection

Console Foundations

Achieved
Jul 24, 2015
Achievement
Console Processes

Console Foundations

Achieved
Jul 24, 2015
Achievement
Console Users and Permission

Console Foundations

Achieved
Jul 23, 2015
Achievement
Moving Around in the Console

Console Foundations

Achieved
Jul 23, 2015
Achievement
Web Apps

Accessibility

Achieved
Jul 22, 2015
Achievement
Websites

Accessibility

Achieved
Jul 22, 2015
Achievement
Introduction

Accessibility

Achieved
Jul 22, 2015
Achievement
AJAX and APIs

AJAX Basics (retiring)

Achieved
Jul 16, 2015
Achievement
jQuery and AJAX

AJAX Basics (retiring)

Achieved
Jun 24, 2015
Achievement
Programming AJAX

AJAX Basics (retiring)

Achieved
Jun 24, 2015
Achievement
AJAX Concepts

AJAX Basics (retiring)

Achieved
Jun 23, 2015
Achievement
Custom Media Players

HTML Video and Audio (Retired)

Achieved
Jun 22, 2015
Achievement
Captioning Video

HTML Video and Audio (Retired)

Achieved
Jun 22, 2015
Achievement
Media Basics

HTML Video and Audio (Retired)

Achieved
Jun 22, 2015
Achievement
Responsive Patterns

Responsive Layouts

Achieved
Jun 19, 2015
Achievement
Media Queries

Responsive Layouts

Achieved
Jun 19, 2015
Achievement
Responsive Theory

Responsive Layouts

Achieved
Jun 19, 2015
Achievement
Traversing and Manipulating the DOM with JavaScript

Interactive Web Pages with JavaScript

Achieved
Jun 19, 2015
Achievement
Selecting Elements and Adding Events with JavaScript

Interactive Web Pages with JavaScript

Achieved
Jun 18, 2015
Achievement
JavaScript and the DOM

Interactive Web Pages with JavaScript

Achieved
Jun 18, 2015
Achievement
Structuring Tables

HTML Tables

Achieved
Jun 18, 2015
Achievement
Table Basics

HTML Tables

Achieved
Jun 17, 2015
Achievement
Chrome DevTools Basics

Website Optimization

Achieved
Jun 9, 2015
Achievement
Choosing Options

HTML Forms

Achieved
Jun 1, 2015
Achievement
Organizing Forms

HTML Forms

Achieved
May 29, 2015
Achievement
Form Basics

HTML Forms

Achieved
May 29, 2015
Achievement
Fundamental Concepts

CSS Basics (2014)

Achieved
May 28, 2015
Achievement
Designing with the Latest Features

CSS Basics (2014)

Achieved
May 28, 2015
Achievement
Basic Layout

CSS Basics (2014)

Achieved
May 28, 2015
Achievement
The Box Model

CSS Basics (2014)

Achieved
May 27, 2015
Achievement
Understanding Values and Units

CSS Basics (2014)

Achieved
May 27, 2015
Achievement
Basic Selectors

CSS Basics (2014)

Achieved
May 27, 2015
Achievement
Getting Started with CSS

CSS Basics (2014)

Achieved
May 26, 2015
Achievement
Sharing a Website

How to Make a Website

Achieved
May 26, 2015
Achievement
Adding Pages to a Website

How to Make a Website

Achieved
May 26, 2015
Achievement
Styling Web Pages and Navigation

How to Make a Website

Achieved
May 26, 2015
Achievement
Customizing Colors and Fonts

How to Make a Website

Achieved
May 26, 2015
Achievement
Meet Objects

Java Objects (Retired)

Achieved
Mar 12, 2015
Achievement
DNS Basics

Technology Foundations

Achieved
Mar 11, 2015
Achievement
Combine and Minify Assets

Introduction to Front End Performance Optimization

Achieved
Mar 9, 2015
Achievement
Optimize Assets

Introduction to Front End Performance Optimization

Achieved
Mar 9, 2015
Achievement
Measuring Performance

Introduction to Front End Performance Optimization

Achieved
Mar 9, 2015
Achievement
Planning for Performance

Introduction to Front End Performance Optimization

Achieved
Mar 9, 2015
Achievement
Soft Skills - Psychology

Soft Skills

Achieved
Mar 6, 2015
Achievement
Presentation Skills

Soft Skills

Achieved
Mar 6, 2015
Achievement
CSS: Cascading Style Sheets

How to Make a Website

Achieved
Mar 5, 2015
Achievement
Creating HTML Content

How to Make a Website

Achieved
Mar 5, 2015
Achievement
JavaScript Functions

JavaScript Basics (Retired)

Achieved
Mar 5, 2015
Achievement
JavaScript Conditional Statements

JavaScript Basics (Retired)

Achieved
Mar 4, 2015
Achievement
JavaScript Numbers

JavaScript Basics (Retired)

Achieved
Mar 4, 2015
Achievement
JavaScript Variables

JavaScript Basics (Retired)

Achieved
Mar 3, 2015
Achievement
Introducing JavaScript

JavaScript Basics (Retired)

Achieved
Mar 3, 2015
Achievement
HTML First

How to Make a Website

Achieved
Mar 3, 2015
Achievement
Beginning HTML and CSS

How to Make a Website

Achieved
Mar 3, 2015
Achievement
JavaScript Objects

JavaScript Loops, Arrays and Objects

Achieved
Mar 2, 2015
Achievement
JavaScript Arrays

JavaScript Loops, Arrays and Objects

Achieved
Feb 27, 2015
Achievement
JavaScript Loops

JavaScript Loops, Arrays and Objects

Achieved
Feb 26, 2015
Achievement
Graphic Basics

Technology Foundations

Achieved
Jan 23, 2015
Achievement
Advanced Sass Concepts

Sass Basics (retired)

Achieved
Dec 19, 2014
Achievement
Building a WordPress.com Site

Great WordPress.com Websites

Achieved
Dec 11, 2014
Achievement
Local WordPress Development

Local WordPress Development

Achieved
Dec 11, 2014
Achievement
Owning a WordPress Site Long Term

WordPress for Website Owners

Achieved
Dec 3, 2014
Achievement
WordPress Community Management

WordPress for Website Owners

Achieved
Dec 3, 2014
Achievement
Working with Media in WordPress

WordPress for Website Owners

Achieved
Dec 2, 2014
Achievement
Adding and Editing Content

WordPress for Website Owners

Achieved
Dec 2, 2014
Achievement
Getting a WordPress Site

WordPress for Website Owners

Achieved
Dec 2, 2014
Achievement
Getting Started with WordPress.com

Great WordPress.com Websites

Achieved
Dec 2, 2014
Achievement
Getting Started with WordPress

Getting Started with WordPress

Achieved
Dec 2, 2014
Achievement
Going Mobile

HTML Email Design

Achieved
Nov 20, 2014
Achievement
Designing Email with CSS

HTML Email Design

Achieved
Nov 20, 2014
Achievement
Coding HTML Email

HTML Email Design

Achieved
Nov 20, 2014
Achievement
HTML Email Basics

HTML Email Design

Achieved
Nov 20, 2014
Achievement
Improving Usability

Usability Foundations

Achieved
Nov 20, 2014
Achievement
Mobile Usability

Usability Foundations

Achieved
Nov 17, 2014
Achievement
Website Usability

Usability Foundations

Achieved
Nov 17, 2014
Achievement
What is Usability?

Usability Foundations

Achieved
Nov 14, 2014
Achievement
Getting Started with Ember.js

Ember.js

Achieved
Nov 14, 2014
Achievement
Perfecting the Prototype

Java Basics

Achieved
Nov 6, 2014
Achievement
Using your New Tools

Java Basics

Achieved
Nov 6, 2014
Achievement
Getting Started with Java

Java Basics

Achieved
Nov 6, 2014
Achievement
Creating a Simple Drawing Application

jQuery Basics (2014)

Achieved
Sep 9, 2014
Achievement
Creating a Password Confirmation Form

jQuery Basics (2014)

Achieved
Sep 2, 2014
Achievement
Creating a Mobile Drop Down Menu

jQuery Basics (2014)

Achieved
Aug 29, 2014
Achievement
Creating a Simple Lightbox

jQuery Basics (2014)

Achieved
Aug 29, 2014
Achievement
Creating a Spoiler Revealer

jQuery Basics (2014)

Achieved
Aug 22, 2014
Achievement
Introduction to jQuery

jQuery Basics (2014)

Achieved
Aug 22, 2014
Achievement
JavaScript Objects

JavaScript Foundations

Achieved
Aug 20, 2014
Achievement
JavaScript Functions

JavaScript Foundations

Achieved
Jul 29, 2014
Achievement
JavaScript Arrays

JavaScript Foundations

Achieved
Jul 28, 2014
Achievement
JavaScript Numbers

JavaScript Foundations

Achieved
Jul 28, 2014
Achievement
JavaScript Strings

JavaScript Foundations

Achieved
Jul 24, 2014
Achievement
Introduction Variables

JavaScript Foundations

Achieved
Jul 24, 2014
Achievement
Functions

Introduction to Programming

Achieved
Jul 24, 2014
Achievement
Objects and Arrays

Introduction to Programming

Achieved
Jul 24, 2014
Achievement
Control Structures

Introduction to Programming

Achieved
Jul 24, 2014
Achievement
Basics

Introduction to Programming

Achieved
Jul 24, 2014
Achievement
Workspace Basics

Photoshop Foundations

Achieved
Jul 18, 2014
Achievement
Grid Layout

CSS Layout Techniques

Achieved
Jul 18, 2014
Achievement
Flexbox Layout

CSS Layout Techniques

Achieved
Jul 17, 2014
Achievement
Positioning Schemes

CSS Layout Techniques

Achieved
Jul 9, 2014
Achievement
Display Modes

CSS Layout Techniques

Achieved
Jul 9, 2014
Achievement
Float Layout

CSS Layout Techniques

Achieved
Jul 3, 2014
Achievement
Responsive Web Design and Testing

How to Make a Website

Achieved
Jun 3, 2014
Achievement
Debugging HTML and CSS Problems

How to Make a Website

Achieved
Jun 3, 2014
Achievement
Speeding up Workflow With Sass

Sass Basics (retired)

Achieved
May 23, 2014
Achievement
Important Skills For Professional Success

Soft Skills

Achieved
Feb 20, 2014
Achievement
Variables, Mixins, and Extending Selectors

Sass Basics (retired)

Achieved
Feb 14, 2014
Achievement
Getting Started with Sass

Sass Basics (retired)

Achieved
Feb 13, 2014
Achievement
Advanced Techniques

Build a Responsive Website

Achieved
Sep 27, 2013
Achievement
Responsive Design

Build a Responsive Website

Achieved
Sep 24, 2013
Achievement
Adaptive Design

Build a Responsive Website

Achieved
Sep 24, 2013
Achievement
Fluid Foundation

Build a Responsive Website

Achieved
Sep 19, 2013
Achievement
Introduction to Responsive Web Design

Build a Responsive Website

Achieved
Sep 19, 2013
Achievement
Newbie

Achieved
Sep 13, 2013