Sem van Westen

Sem van Westen

Member Since January 4, 2015

2,434

Total Points

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

Skills & Experience

  • Company

    Hozho

32 Achievements

  • Achievement

    PHP on the Web

    PHP Basics

    Achieved

    Apr 18, 2018

    PHP on the Web
  • Achievement

    Daily Exercise Program

    PHP Basics

    Achieved

    Apr 18, 2018

    Daily Exercise Program
  • Achievement

    Unit Converter

    PHP Basics

    Achieved

    Apr 12, 2018

    Unit Converter
  • Achievement

    Getting to Know PHP

    PHP Basics

    Achieved

    Apr 12, 2018

    Getting to Know PHP
  • Achievement

    Adding a New Web Page

    Introduction to HTML and CSS (2016)

    Achieved

    Apr 9, 2018

    Adding a New Web Page
  • Achievement

    Make It Beautiful with CSS

    Introduction to HTML and CSS (2016)

    Achieved

    Apr 9, 2018

    Make It Beautiful with CSS
  • Achievement

    HTML: The Structural Foundation of Web Pages and Applications

    Introduction to HTML and CSS (2016)

    Achieved

    Apr 9, 2018

    HTML: The Structural Foundation of Web Pages and Applications
  • Achievement

    Getting Familiar with HTML and CSS

    Introduction to HTML and CSS (2016)

    Achieved

    Apr 9, 2018

    Getting Familiar with HTML and CSS
  • Achievement

    Exterminator

    Achieved

    Feb 20, 2015

    Exterminator
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Feb 19, 2015

    Introducing JavaScript
  • Achievement

    Fundamental Concepts

    CSS Basics (2014)

    Achieved

    Feb 18, 2015

    Fundamental Concepts
  • Achievement

    Designing with the Latest Features

    CSS Basics (2014)

    Achieved

    Feb 18, 2015

    Designing with the Latest Features
  • Achievement

    Basic Layout

    CSS Basics (2014)

    Achieved

    Feb 17, 2015

    Basic Layout
  • Achievement

    The Box Model

    CSS Basics (2014)

    Achieved

    Feb 16, 2015

    The Box Model
  • Achievement

    Understanding Values and Units

    CSS Basics (2014)

    Achieved

    Feb 16, 2015

    Understanding Values and Units
  • Achievement

    Basic Selectors

    CSS Basics (2014)

    Achieved

    Feb 16, 2015

    Basic Selectors
  • Achievement

    Getting Started with CSS

    CSS Basics (2014)

    Achieved

    Feb 13, 2015

    Getting Started with CSS
  • Achievement

    Debugging HTML and CSS Problems

    How to Make a Website

    Achieved

    Feb 13, 2015

    Debugging HTML and CSS Problems
  • Achievement

    Sharing a Website

    How to Make a Website

    Achieved

    Feb 13, 2015

    Sharing a Website
  • Achievement

    Responsive Web Design and Testing

    How to Make a Website

    Achieved

    Feb 13, 2015

    Responsive Web Design and Testing
  • Achievement

    Adding Pages to a Website

    How to Make a Website

    Achieved

    Feb 13, 2015

    Adding Pages to a Website
  • Achievement

    Styling Web Pages and Navigation

    How to Make a Website

    Achieved

    Feb 9, 2015

    Styling Web Pages and Navigation
  • Achievement

    Creating HTML Content

    How to Make a Website

    Achieved

    Feb 9, 2015

    Creating HTML Content
  • Achievement

    Customizing Colors and Fonts

    How to Make a Website

    Achieved

    Feb 9, 2015

    Customizing Colors and Fonts
  • Achievement

    CSS: Cascading Style Sheets

    How to Make a Website

    Achieved

    Feb 9, 2015

    CSS: Cascading Style Sheets
  • Achievement

    HTML First

    How to Make a Website

    Achieved

    Feb 9, 2015

    HTML First
  • Achievement

    Adding a Contact Form

    Build a Simple PHP Application

    Achieved

    Jan 7, 2015

    Adding a Contact Form
  • Achievement

    Creating the Menu and Footer

    Build a Simple PHP Application

    Achieved

    Jan 7, 2015

    Creating the Menu and Footer
  • Achievement

    Getting Started with PHP

    Build a Simple PHP Application

    Achieved

    Jan 7, 2015

    Getting Started with PHP
  • Achievement

    Introduction

    HTML

    Achieved

    Jan 5, 2015

    Introduction
  • Achievement

    Beginning HTML and CSS

    How to Make a Website

    Achieved

    Jan 4, 2015

    Beginning HTML and CSS
  • Achievement

    Newbie

    Achieved

    Jan 4, 2015

    Newbie