Hi,
We are facing an issue in Confluence 7.4.7 were columns and layouts are not rendering correctly and appear all messed up
Same simple code, 2 column layout with 2 columns 50% each. Also tested with single column layout with 4 columns 25%
Chrome 91.0.4472.77: Incorrect render

Firefox 89.0: Correct render (2 column layout with 2 columns 50% each)

Thanks in advance