This WebPack repo build allows creating HTML5 ads using SCSS and Typescript.
Within the src folder there is a single HTML file (index.html) for the ad, which loads a Typescript file (main.ts), which also includes a stylesheet (style.sccs).
The WebPack build (npx webpack) will compile any TypeScript and SCSS, inline
the results into the HTML file, and place the resulting HTML file in the dist
directory. Any assets included from the HTML file will also be included in the
dist folder and referenced from the HTML file.
Finally, it will also product package.zip within the dist directory, which
is everything zipped up and ready to be uploaded to an ad server.