-webkit-border-before - CSS: Cascading Style Sheets
e in the style sheet. /* border values */ -webkit-border-before: 1px; -webkit-border-before: 2px dotted; -webkit-border-before: medium dashed blue; /* global values */ -webkit-border-before: inherit; -webkit-border-before: initial; -webkit-border-before: unset; -webkit-border-before can be used to set the values for one or more of: -webkit-border-before-width, -webkit-border-before-style, and -webkit-border-before-color. it maps to a physical border depending on the element's writing mode, directionality, and text orientation. it corresponds to the border-top, border-right, border-bottom, or border-left property depending on the values defined for writing-mode, direction, and text-orientation. it relates to -webkit-border-after, -webkit-border-start, and -webkit-border-end, which define the other borders of the...

WebKit CSS extensions - CSS: Cascading Style Sheets
y properties note: avoid using on websites. these properties will only work in webkit applications. ...