In the past weeks I reviewed a bit my front-end (html-css-javascript) lessons, and also found an interesting challenge lately. It is a vanilla js challenge by Colt Steele, published on Youtube: https://youtu.be/qGwR_DSSnuQ

My solution to it:
https://github.com/zoltanhalasz/StepperForm

Working link(live project):
https://codepen.io/zoltanhalasz/project/editor/ApPwKj

Explanation:

• I am using a structure with div's with classes and id's that can be targeted by Javascript DOM manipulation.
• the script uses lots of functions, and the getElementById used to target the classes/ids
• use hide/show for the stepper form via Javascript (manipulating DOM styles)

Recommended reading:

• Javascript DOM: https://www.w3schools.com/js/js_htmldom.asp
• CSS/Html: https://www.w3schools.com/html/default.asp