CSS 2.1 Reference: border-top-style Property

CSS border-top-style Property
Syntax	selector {border-top-style: style;} style is specified by using one of the following keywords: none, hidden, dotted, dashed, solid, double, groove, ridge, inset, outset, or inherit.
Usage	The border-top-style property is used to specify the style of the top border. See the Box Model for a description of the boxes that are generated for elements and the relative position of the borders. This property is specified by using a keyword according to the syntax shown above. CSS Example: The border-top-style property is set to use a dashed line. h1 {border: medium solid red; border-top-style: dashed; }
Keywords	none - No border. hidden - The same as the keyword none. It is however different for table elements in terms of border conflict resolution. dotted - This is a sample dashed - This is a sample solid - This is a sample double - This is a sample groove - This is a sample ridge - This is a sample inset - This is a sample outset - This is a sample inherit - The inherit keyword is used to specify that the value for this property should be taken from the parent element. If inherit is used with the root element, then the initial value for this property will be used. Note: The border samples, shown above, may not appear identically in all browsers.
Applies To	All elements
Inherited	No
Initial Value	none

border-top-style Property Examples
The border-top-style property is set to use a dashed line.