Css help for bg

hello,
please help.. what i have done wrong.. i dont know..
i just added another css bg with position relative.. and now my parent is not with filter blur

this is my first post.. i dont how it works here, so i paste a link and i paste the code on here… please be kind.. :slight_smile:
i hope to keep it secret

pictures:
background:

COD3P3N

i hope someone can help.. :slight_smile:
THANK YOU


but the girl needs to be blured plz