BORDER-WIDTH Property In CSS
border-width Property in CSS
border-width property Declares the width of all four borders at once.
Possible Value:
Lengths or the following predefined values: thin medium thick
Examplediv { border-width:1px 3px 5px 2px; }
div { border-width:thin; }
div { border-width:2px 4px; }
div { border-width:2px 4px 5px; }