Apply button visuals to the clickable surface across email targets

packages/email-renderer/src/mjml.ts

@@ -262,6 +262,7 @@ export function importMjml(
         "font-size": ["fontSize", /^\d+(?:\.\d+)?(?:px|rem|em|%)$/],
         "font-weight": ["fontWeight", /^(normal|bold|[1-9]00)$/],
         "border-radius": ["borderRadius", /^\d+(?:\.\d+)?(?:px|rem|em|%)$/],
+        "inner-padding": ["padding", /^\d+(?:\.\d+)?(?:px|rem|em|%)(?:\s+\d+(?:\.\d+)?(?:px|rem|em|%)){0,3}$/],
       };
       for (const [attribute, raw] of Object.entries(a)) {
         if (attribute === "href") continue;