dotted dashed solid double
groove ridge inset outset

partial attributes merged

border:thin solid red;
border:red thin solid;
{ border:thin solid; }{border:blue; } (merged, reset all - color has no effect)
{ border:thin solid; }{border-color:green; } (merged, overwrite only color)
{ border:thin solid; }{border:blue; } (merged, reset all - color has no effect)
{ border:thin solid; }{border-color:green; } (merged, overwrite only color)
{ border:thin blue solid; }{border-color:green; } (merged, overwrite only color)
{ border:thin blue solid; }{border-style:dashed; } (merged, overwrite only style)
{ border:thin blue solid; }{border-width:thick; } (merged, overwrite only width)
{ border:thin blue solid; }{border-width:medium; } (merged, overwrite only width)
{ border:thin blue solid; }{border-width:3pt; } (merged, overwrite only width)

top:

border-top:thin solid red;
border-top:red thin solid;
{ border-top:thin solid; }{border-top-color:green; } (merged, overwrite only color)
{ border-top:thin solid; }{border-top:blue; } (merged, reset all - color has no effect)

right left bottom:

border-right:thin solid red;
border-left:thin solid red;
border-bottom:thin solid red;

Individual Attributes

{border:thin blue solid;}{border-top-color:red;}
{border:thin blue solid;}{border-right-color:red;}
{border:thin blue solid;}{border-bottom-color:red;}
{border:thin blue solid;}{border-left-color:red;}
{border:thin blue solid;}{border-top-style:dashed;}
{border:thin blue solid;}{border-right-style:dashed;}
{border:thin blue solid;}{border-bottom-style:dashed;}
{border:thin blue solid;}{border-left-style:dashed;}
{border:thin blue solid;}{border-top-width:medium;}
{border:thin blue solid;}{border-right-width:medium;}
{border:thin blue solid;}{border-bottom-width:medium;}
{border:thin blue solid;}{border-left-width:medium;}

Individual side specific Attributes

{border:thin blue solid;}{border-color:red;}
{border:thin blue solid;}{border-color:red green;}
{border:thin blue solid;}{border-color:red green blue;}
{border:thin blue solid;}{border-color:red green blue gray;}
{border:thin blue solid;}{border-style:dashed;}
{border:thin blue solid;}{border-style:dashed dotted;}
{border:thin blue solid;}{border-style:dashed dotted double;}
{border:thin blue solid;}{border-style:dashed dotted double groove;}
{border:thin blue solid;}{border-width:1pt;}
{border:thin blue solid;}{border-width:1pt 2pt;}
{border:thin blue solid;}{border-width:1pt 2pt 3pt;}
{border:thin blue solid;}{border-width:1pt 2pt 3pt 4pt;}

Misc. values