Web Accessibility: Color Contrast

In this video, I will demonstrate checking color contrast on your web pages using the WAVE browser extension.

WAVE is a web accessibility evaluation tool developed by WebAIM.org. It provides visual feedback about the accessibility of your web content by injecting icons and indicators into your page. No automated tool can tell you if your page is accessible, but WAVE facilitates human evaluation and educates about accessibility issues. All analysis is done entirely within the Chrome browser allowing secure valuation of intranet, local, password protected, and other sensitive web pages.

For Chrome-Based Web Browsers

If you use a Google Chrome-based browser (Google Chrome, Microsoft Edge, or Brave), please consider installing the WAVE Extension.


For the Firefox Web Browser

If you are using the Firefox browser, you can install the extension from this link:


For Other Web Browsers

There is not currently an extension for Apple Safari or other browsers at this time 🙁.

You may also want to watch my video on Getting Started with Web Accessibility.


Getting Started with Python List Comprehensions

In this video, you will see demonstrations of how to use Python List Comprehensions.

  1. Converting a list of temperatures
  2. Determine which elements in a list are numbers
  3. Calling a function from within a list comprehension
  4. Combining two lists
  5. Combining multiple lists

Here are the files demoed in the video https://github.com/belgort-clark/python-list-comprehension-video-demos

Here’s a video on Python String Methods that you may also find helpful:

Using the Clark College Web Development Browser Extension for Validation

In this video, you will learn how to use the Clark College Web Development Extension to validate the HTML and CSS of your webpage on the CTEC web server.

Get the extension for Chrome, Brave, and Edge browsers: https://chrome.google.com/webstore/detail/clark-college-web-develop/hfjgpnjlngigaldmbhconnjmpjeaohlj

Get the extension for the Firefox browser:


Video: How not to go about coding your CS50P Python problems

In this video, I will show you how I recommend that you go about solving the problems in Harvard’s CS50P Intro to Programming with Python course. Also, for my CTEC 121 Python course that I teach at Clark College. I encourage you to leave a comment, smash the Like button and subscribe to my channel.