Starting August 19, Facebook is rolling out changes to mobile news feed post and ad layouts, taking them from a 2:3 aspect ratio to 4:5.

Facebook is making changes to the aspect ratio for posts and ads in its mobile News Feed. Beginning August 19, posts and ads in the mobile News Feed will display at a 4:5 aspect ratio, which means they’ll be shorter than at the original 2:3 aspect ratio.

For advertisers, this means ads will show fewer lines of text and the maximum height for photos or videos in the ad will be reduced to fit new design: “The tallest supported aspect ration for images without links and for videos is now vertical (4:5). Media taller than 4:5 will be masked on Facebook’s mobile News Feed.”

Read more at Marketing Land


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