Course Lesson · Editorial

It opens: "Atelier Lesson 03 of 08 This week Hydration, and why your dough felt wrong. Most first loaves fail before the oven, at the moment the flour meets the water. This lesson is twenty-two minutes on what hydration actually does to...". Preheader: "Lesson three is unlocked: hydration, and why your dough felt wrong.". Links: "Start lesson 03", "Pause this course". 1 image, 3 Outlook-only blocks, no dark-mode query, system fonts.

The spread is what matters on this template: 100 in Superhuman against 88 in Outlook Classic, a 12-point gap across the same file. 15 of the 21 clients render it without a single flagged property. Outlook Classic is the one to preview against after any edit, because it is where this template has the least margin, and the 85 warnings behind that score are concentrated there rather than spread evenly.

At 8KB compiled it has roughly 94KB of headroom before Gmail clips the message at 102KB and hides the rest behind a "View entire message" link. Inlined CSS and base64 images both count toward that, so watch it as you add sections.

Safe to customise: Copy, colour and imagery.

Leave alone: The table structure. It is what holds the layout together in Outlook, which resolves widths from cells rather than from CSS.

Modified it? Check your version against the same 21 clients.