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<div class="block"></div>

.block {
	background-color: #eee;
	width: 300px;
	height: 250px;
	border: 8px solid #666;
  border-image-source: url(https://www.quackit.com/pix/css/css3/properties/border-image-1.png); 
  border-image-slice: 16; 
  border-image-width: 16px 8px; 
  border-image-repeat: round; 
}

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