What is the purpose of spread in box-shadow?

Answer 1

if you want to make a shadow around the box (box-shadow) you use.

Answer 2

it gives little realistic feel to our shadow

Answer 3

In my opinion, Spread in box-shadow is the size of shadow.

Answer 4

Spread is actually very useful. It increases the size of your box shadow by however many units you define. Ex:

box-shadow: 10px 10px 5px 10px black;

This creates a black shadow with a 5px blur that's offset 10 over and 10 down. By using spread you'll get a larger black shadow that fills in the 10px offset amount. When adding blur its good to add spread so the blurred shape doesn't look too small.

Answer 5

blur & spread

here is a usefull code try it you will understand
https://code.sololearn.com/WGioxTdHuKWl/#js

Answer 6

who knows
only god

Answer 7

you don't need to use spread radius.only blur is sufficient