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Left Border Width

Syntax: border-left-width: <value>
Possible Values: thin | medium | thick | <length>
Initial Value: medium
Applies to: All elements
Inherited: No

The border-left-width property is used to specify the width of an element's left border. The value may be one of three keywords, which are not affected by font size, or a length, which can be used to achieve relative widths. Negative values are not allowed.

Authors may also use the border-left, border-width, or border shorthand properties.