What are the options available in border-style CSS property?

Answer:

There are lots of options available few are listed below:

Inset:- It is opposite of Outset.Specifies a 3D inset border. The effect depends on the border-color value provided.
Outset:- It is opposite of Inset.Specifies a 3D outset border. The effect depends on the border-color value provided.
Hidden:- This value is used with tables. It's same as "none".
Groove:- It specifies a 3D grooved border.The effect depends on the border-color value provided.
Ridge:- Patterned border that is supposed to represent an embossed ridge opposite of groove).Renders differently in different browsers.Specifies a 3D ridged border. The effect depends on the border-color value.