Quick Reference
The border-image-outset property specifies the amount that the border image area should extend beyond the border box.
div {
border-image-source: url(border_image.jpg);
border-image-outset: 15px;
}Default
| Default value | 0 |
| Inherited values | no |
| Can it be animated? | no |
These are the allowed values.
| Value | Description |
|---|---|
| length | A length unit specifying how far from the edges the border-image will appear (default value is 0) |
| number | Represent multiples of the corresponding border-width |
| initial | Sets this property to its default value |
| inherit | Inherits this property from its parent element |
Using JavaScript
The HTML element can also be styled using JavaScript and the element’s id.
document.getElementById('my_div').style.borderImageOutset = '15px';<button onclick='my_function()'>Click Here</button>
<script>
function my_function() {
document.getElementById('my_div').style.borderImageOutset = '15px';
}
</script>CSS Notes:
- The “inherit”, “initial” and “unset” keywords can be used with any CSS property to set its value
- In CSS there are many ways to express a color value in a property
We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.