Bert Bos & Eva Kasal | CSS3 in Style
From the demo:
.border_groovy{ border-image: url(groovy.png); border-image-slice:124; border-image-repeat: round }
April 2012: experimental implementations (prefixes)
From the demo:
span { border-image: linear-gradient(blue, green) 33% round stretch; }
From the demo:
div:nth-child(6){ border-radius:160px 0 60px 0 / 160px 0 30px 0; } /* 4 horizontal angles / vertical angles */