<!DOCTYPE html>
<html>
<head>
<style>
.border {
border: 10px solid transparent;
padding: 20px;
border-image: url("/uploads/media/default/0001/01/812bf6a749522b8185c1beee20dd99dd6c6c87da.jpeg") round;
border-image-slice: 20;
border-image-repeat: round;
border-image-width: 20px;
}
</style>
</head>
<body>
<h1>Пример border-image-width</h1>
<p class="border">Здесь установлено 20px для border-image-width.</p>
</body>
</html>