The "border-width" CSS Property

Shorthand

This shorthand property sets the thickness of all four sides of the element's border. Lengths may not be negative.

Values for "border-width"

CSS Level	Value
CSS Backgrounds and Borders Level 3	"<line-width>{1,4}", where <line-width> = "<length [0,∞]> | thin | medium | thick"

Recommended Links

• CanIUse.com: Search "border-width" (browser compatibility information)
• CanIEmail.com: Search "border-width" (email client compatibility information)
• CSS 2.1: border-width property
• CSS Backgrounds and Borders Level 3: border-width property
• MDN: border-width property
• Quackit: border-width property

Search Engine Links (for more information)

• Bing "CSS border-width property"
• Google "CSS border-width property"