Highlighting Rows below a Maximum Value

Hello
You could try the following conditional formatting formula in cells A1:B10

=OR(ROW()=MATCH(MAX($A$1:$A$10),$A$1:$A$10,0)+1,ROW()=MATCH(MAX($A$1:$A$10),$A$1:$A$10,0)+2)

It seems to work for me.

Hope this helps