How can we calculate specificity?

[vidushi-tomar-7f335103 (Vidushi Tomar)]

How can we calculate specificity?

[sakshi-srivastava-f3c2a4a4 (Sakshi Srivastava)]

Start at 0, add 1000 for style attribute, add 100 for each ID, add 10 for each attribute, class or pseudo-class, add 1 for each element name or pseudo-element.

Read more about it here.