border-left-width
The border-left-width CSS property sets the width of the left border of a box.
Syntax
border-left-width: 10em /* Any
border-left-width: 3vmax
border-left-width: 6px
border-left-width: thin /* A keyword */
border-left-width: medium
border-left-width: thick
border-left-width: inherit
Example
<!DOCTYPE HTML> <html> <head> <title>CSS Tutorials</title> <style> div { border-left-width: thin; border-left-style: solid; border-left-color: #000; width:200px; height:200px; background-color:#D9FBC4; } </style> </head> <body> <div> border-left-style </div> </body> </html>