css border styles
.borderstyles{ border-style: none; border-style: hidden; border-style: dotted; border-style: dashed; border-style: solid; border-style: double; border-style: groove; border-style: inset; border-style: ridge; border-style: outset; border-style: initial; border-style: inherit; }
border style
/* The black border occurs if you didn't set the border style */ button { border-style: solid; }
border-style
The border-style property sets the style of an element's four borders.