W3C

Bert Bos & Eva Kasal | CSS3 in Style

Borders level 3

From the demo:

.border_groovy{
	border-image: url(groovy.png);
   	border-image-slice:124;
   	border-image-repeat: round }

Slices

April 2012: experimental implementations (prefixes)

Borders level 3

From the demo:

span {
      border-image: linear-gradient(blue, green) 
      33% round stretch;
}

Borders level 3

From the demo:

div:nth-child(6){
	border-radius:160px 0 60px 0 / 160px 0 30px 0; 
}
/* 4 horizontal angles / vertical angles  */