Formats: ZIP containing HTML and optionally CSS, JS, GIF, PNG, JPG, JPEG, SVG
Priority ad sizes include: 728x90, 300x250, 160x600, 120x600, 300x600, 300x50, 320x50
HTML5 ads created in Google Web Designer
All other HTML5 ads
When uploading a .zip folder, the maximum number of files included is 40.
Keep in mind
UTF-8 must be used for non-ASCII characters