Sections whose background is dark show through on the phone and reveal other applications that are under the page. This is visible in the hero section and the footer, because they are with a dark background. The photo shows where to look for the transparency.
The background is set to full colour 100% opacity. I have no idea where this problem comes from. Please help.
SOLVED: Its not a page issue - same happens with FB posts. Probably its Xiaomi issue.