Notion Mail adds max-width 630px to images

[M-J-Robbins]

Email Client
Notion Mail

Operating System
Desktop Mac
Webmail

Expected Result
Often images are styled with a width:600px; max-width:100% to achieve a fluid layout on smaller viewports.

Actual Result
The max-width:100% is replaced with max-width:630px meaning the image is no longer fluid.

Or in the case of when the styles are swapped width:100%; max-width:200px would become width:100%; max-width:630px

Code sample

<img src="https://res.cloudinary.com/dvbgiw8ot/image/upload/w_1200,ar_1:1,c_fill,q_auto/v1732216174/PXL_20241121_144238391_ked9s2.jpg" alt="" width="600" style="vertical-align: middle; max-width: 100%;"/>

Additional context
I'm curious if the 630px is based off anything like screen size or viewport size and may be different for others but for me it's 630px every time.

I've reported this as feedback to Notion too.

[M-J-Robbins]

This can be fixed with some CSS

.fluid-img{max-width:100% !important}