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CSS Properties

animation
appearance
backface-visibility
background
border
bottom
box
caption-side
clear
clip
color
column
content
counter-increment
counter-reset
cursor
direction
display
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left
letter-spacing
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nav
opacity
outline
overflow
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page-break
perspective
perspective-origin
position
punctuation-trim
quotes
resize
right
rotation
rotation-point
table-layout
target
text
top
transform
transition
vertical-align
visibility
width
white-space
word-spacing
word-break
word-wrap
z-index

CSS3 border-radius Property

CSS Reference Complete CSS Reference

Example

Add rounded borders to a div element:

div
{
border:2px solid;
border-radius:25px;
}

Try it yourself »

Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The border-radius property is supported in IE9+, Firefox 4+, Chrome, Safari 5+, and Opera.

Definition and Usage

The border-radius property is a shorthand property for setting the four border-*-radius properties.

Tip: This property allows you to add rounded borders to elements!

Default value: 0
Inherited: no
Version: CSS3
JavaScript syntax: object.style.borderRadius="5px"

Syntax

border-radius: 1-4 length|% / 1-4 length|%;

Note: The four values for each radii are given in the order top-left, top-right, bottom-right, bottom-left. If bottom-left is omitted it is the same as top-right. If bottom-right is omitted it is the same as top-left. If top-right is omitted it is the same as top-left.

Value Description Play it
length Defines the shape of the corners Play it »
% Defines the shape of the corners in % Play it »

Example 1

border-radius:2em;

is equivalent to:

border-top-left-radius:2em;
border-top-right-radius:2em;
border-bottom-right-radius:2em;
border-bottom-left-radius:2em;

Example 2

border-radius: 2em 1em 4em / 0.5em 3em;

is equivalent to:

border-top-left-radius: 2em 0.5em;
border-top-right-radius: 1em 3em;
border-bottom-right-radius: 4em 0.5em;
border-bottom-left-radius: 1em 3em;

Related Pages

CSS3 tutorial: CSS3 Borders

CSS Reference Complete CSS Reference
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