- Tags: Border
- Categories: CSS Properties, CSS Reference, Reference
Quick Reference
The border-top-left-radius property defines the radius of the top-left corner, giving it a rounded look.
/* set a uniform roundness to the corner */
div {
border-top-left-radius: 20px;
}
/* set a skewed roundness to the corner */
div {
border-top-left-radius: 40px 20px;
}
Values
| Default value | 0 |
| Inherited values | no |
| Can it be animated? | yes |
These are the allowed values.
| Value | Description |
|---|---|
| length | Defines the shape of the top-left corner (default value is 0) |
| % | Defines the shape of the top-left corner in % |
| 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.borderTopLeftRadius = '20px';
<button onclick='my_function()'>Click Here</button>
<script>
function my_function() {
document.getElementById('my_div').style.borderTopLeftRadius = '20px';
}
</script>
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.
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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
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