<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>border-width Property</title> <style> p { border-style: solid; padding: 25px; margin: 25px; } p.one { border-width: 7px; } p.two { border-width: 7px 13px; } p.three { border-width: 7px 13px 17px; } p.four { border-width: medium 15px thick 20px; } </style> </head> <body> <p class="one"><strong>one-value syntax:</strong>This is a frist paragraph.</p> <p class="two"><strong>two-value syntax:</strong>This is a second paragraph.</p> <p class="three"><strong>three-value syntax:</strong>This is a most important paragraph.</p> <p class="four"><strong>four-value syntax:</strong>This is a last paragraph.</p> </body> </html>