About css3 style type

sir mera css3 me ye kam nhi ker rha he

CSS example p ( color:blue; font-size:100px; )

This is first paragrah without css.

sir mera css3 me ye kam nhi ker rha he CSS example blur background css ( color:blue; font-size:100px; )
This is first paragrah without css.

you can also give information about css from blur background css.