small visual problem

my problem is this :
https://fun-world.66ghz.com/
the title of the posts is different from when the mouse is on it ‘mouseover’ what i want here is for both the mouseout and mouseover 2 match to be both with the <strong> code .. can anyone help please?

https://www.google.com/notebook/public/13487541222232777494/BDVAm3goQ-Pu-lq0k

this is my index.php