Use complex control structures with an array to make a 'Squirrel Chase' app that will make a squirrel appear in a random tree.
The video above reviews the basics of creating a shpe tween and graphic symbol to create an animate in Adobe Animate CC
The video above demonstrates how to import objects from Adobe Illustrator and create graphic symbols using objects
The video above has instruction on taking an HTML page with styling embedded in "style" tags, creating a separate CSS document and linking the HTML page to the newly created CSS document.
The video above has resources and examples of the use of flex-boxes and properties you can use to improve your layout and make it more responsive