Update Content Contained Within a Pane
When updating the content of a pane, LiveView will send the diff to the client causing the pane to update as well. The pane will automatically recalculate its new style (and size) to fit the new content without changing the entire layout of the group.
Top panel
Card 1
Card 2
Card 3
Card 4
Card 5
Card 6
Card 7
Card 8
Card 9
Card 10
You can find the example code here.