1. CSS3 Border images

    Method of using images for borders

  2. CSS box-decoration-break

    Controls whether the box's margins, borders, padding, and other decorations wrap the broken edges of the box fragments (when the box is split by a break (page/column/region/line).

  3. CSS3 Box-sizing

    Method of specifying whether or not an element's borders and padding should be included in size units

  4. css property: border-radius: elliptical borders