To set all the border right properties in JavaScript, use the borderRight property. Set the border color, style, and, width at once using this property.
Example
You can try to run the following code to learn how to set all the border right properties at once −
<!DOCTYPE html>
<html>
<head>
<style>
#box {
border: thick solid gray;
width: 300px;
height: 200px
}
</style>
</head>
<body>
<div id="box">Demo Text</div>
<br><br>
<button type="button" onclick="display()">Change right border</button>
<script>
function display() {
document.getElementById("box").style.borderRight = "thick solid #000000";
}
</script>
</body>
</html>