border-width:
• specifies the width of the border of a box
• sides of the box can be given varying widths
• can have numerical value or can be specified as “thin”, “medium”, or ”thick”
a border is the separation of one box from another.
in the CSS box model, the border is situated on the rim
of the box between the margin and the padding
border-style:
• specifies the style of the border of the box
• sides of the box can be given varying styles
• values include: solid, dashed, none, and more
border-color:
• specifies the color of the border of the box
• sides of the box can be given varying colors
• can be specified with HEX code, RGB, HSL, or
specified color names
initial
• a value which sets the border back to default
• as default for a border style is “none” there will
be no border
inherit
• a value which will inherit the same border
styling as the parent element