To remove unwanted elements or effects from your site, you have several options:
Select the element(s) and press Delete on your keyboard
Right-click the element and select “Delete” from the context menu
Select the element in the Navigator panel and press Delete
When removing elements, make sure to select all related components to avoid leaving behind orphaned elements. You can use the Navigator panel to see the element hierarchy and ensure you’re selecting everything you need to remove.
Before making significant changes, create a manual backup point through the Project Settings menu. This allows you to restore your site if needed. If you make a mistake, you can immediately undo the deletion using Command + Z (Mac) or Control + Z (Windows).
Hopefully this helps! If you still need assistance, please reply here so somebody from the community can help.
If the effect is more localized (e.g. on sections or images), click on the affected elements in the Webflow designer and check if they have an animation attached (e.g. a fade-in or slide-in animation).