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 # Email design
 
 ## General tips
+- Avoid using divs and flexbox; stick to <table> elements with inline styles for reliable rendering.
+- A width of around 600px ensures readability on most screens (do not go above 600px)
+- Stick to common fonts like Arial, Helvetica, Verdana, or Times New Roman to avoid rendering issues.
+- Always include a plain text alternative to improve deliverability and accessibility
+- Most email clients, including Outlook, Gmail, Yahoo Mail, and Apple Mail, do not support embedded videos (e.g., <video> tags).
 
-## Supported CSS in emails
+## Supported CSS in Outlook
+- Outlook does not support border-radius or background images in normal CSS
+- Outlook ignores 'style' blocks, so always use inline styles
+- Outlook does not respect max-width, so define fixed widths
+- Use VML (Vector Markup Language) for these elements.
+
+- Example for a rounded button:
+
+_<v:roundrect xmlns:v="urn:schemas-microsoft-com:vml" href="https://yourlink.com" style="height:50px; width:200px; v-text-anchor:middle;" arcsize="50%" fillcolor="#007BFF" strokecolor="#007BFF">
+  <w:anchorlock/>
+  <center style="color:#ffffff; font-family:sans-serif; font-size:16px;">Click Here</center>
+</v:roundrect>_
 
 ## Tools for email preview
+- Use tools like Litmus or Email on Acid to check how your email looks across different email clients.