CSS Border Image Generator
The border image property allows users to display an image as border surrounding an element.
Preview
Image used in source:

Code
.element {
width: 150px;
height: 150px;
border-style: solid;
border-image-width: 20px 20px 20px 20px;
border-image-slice: 50 50 50 50;
border-image-outset: 0px 0px 0px 0px;
border-image-repeat: round round;
border-image-source: urls("https://htmlcss.tools/img/border_image.png");
}