Banner Ads are a common request among clients. I have experience using Google DoubleClick Studio as well as other 3rd party media servers. I prefer to develop HTML banners using a code editor but can also use Adobe Animate or Adobe Edge upon client request. When the change over from Flash to HTML5 first happened I did some tests rebuilding the last banners I developed in Flash to HTML5 to see how file size and animation options stacked up. I was pleasantly surprised. Below is a selection of HTML5 banners I have done for agencies.
Canadian Club Refresh your drink
Smiths City Trade-In & Save
Smiths City 5 Day Sale Extravaganza
Blue Coconut 50 Ways. A SWIFFY Flash to HTML5 conversion. The client was able to reuse these files post-flash with very little code tweaking.
Lightbox Suits Promo. Originally done in Flash at 36kb. Redone in HTML5 at 9kb (+ 1 approved cached external library)