Module border_style 

Utilities for controlling the style of an element’s borders.

Class	Properties	Preview
border-solid	border-style: solid;
border-dashed	border-style: dashed;
border-dotted	border-style: dotted;
border-double	border-style: double;
border-hidden	border-style: hidden;
border-none	border-style: none;

Arbitrary values

Any line style property is allowed as arbitrary value. For example, border-[dotted_solid_none_dashed].

Tailwind reference