So if you follow along in the video, I refer to this blog post for you to enter code at certain point into the HTML widget, so below is everything you will need!
Alternatively
You can download the complete template here
The Following are the css class names I used in the tutorial:
reboot-card-effect-section
reboot-card-effect-heading
reboot-card-effect-info
reboot-card-effect-close
reboot-card-effect
The Following code goes into the HTML widget: