CSS Property:
border-image-width:

Result:
Note: Internet Explorer 10, and earlier versions, do not support the border-image-width property.
CSS Code:

#myDIV {
  border: 10px solid transparent;
  padding: 15px;   
  border-image: url(border.png);
  border-image-slice: 30;
  border-image-repeat: round;
  border-image-width: 1;
} 
  
Click the property values above to see the result
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