Mobile device preview does not initially apply auto-width on images

[nharraud]

Hello,

I report this issue here as I don't see a repository for the generic editor. I apologize if this is not the right place.

Editor version: 1.243.0
Editor source: https://editor.unlayer.com/1.243.0/editor.html

As you can see in the recording below, the mobile device preview automatically selects "auto" width by default for images. Initially the image is not stretched. If you disable auto-width and re-enable it, the image is stretched to take the full width.

Screen.Recording.2025-04-03.at.17.59.26.mov

I see that the generated HTML actually has the following CSS for the mobile media query:

.u-row .u-col img {
  max-width: 100% !important;
}

Thus the stretched version is the correct one, not the initial non-stretched display.

I sadly could not find any documentation regarding the "auto" width. Could you please confirm that it will always stretch the image on the whole width on mobile devices? We would like to update our own documentation to reflect this.