Property Reference - CSS Reference - page 146

Name
border-style
Values:
[ none | hidden | dotted | dashed | solid | double | groove | ridge | inset | outset ]{1,4}
Initial value:
Not defined for shorthand properties
Applies to:
All elements
Inherited:
No
Computed value:
See individual properties
Description:
A shorthand property used to define the styles for the overall border of an element or for each
side individually. The value of any border must be something other than none for the border
to appear. Note that setting border-style to none (its default value) will result in no border
at all. In such a case, any value of border-width will be ignored and the width of the bor-
der will be set to 0 . Any unrecognized value from the list of values should be reinterpreted as
solid .
Examples:
h1 {border-style: solid;}
img {border-style: inset;}