<!DOCTYPE html>
<html>
<head>
<style>
#main {
    border: 15px solid transparent;
    padding: 15px;    
    border-image: url(border.png);
    border-image-slice: 30;
    border-image-repeat: round;
}

</style>
</head>
<body>

<p id="main">This element uses an image as a border.</p>

<p>Click the "Try it" button to change the value of the borderImageWidth property.</p>

<button onclick="myFunction()">Try it</button>
<script>
function myFunction() {
    document.getElementById("main").style.borderImageRepeat = "stretch";
}
</script>

<p><b>Note:</b> Internet Explorer 10, and earlier versions, do not support the border-image-repeat property.</p>

</body>
</html>