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CSS3 Border-radius (rounded corners)
This method is used to create rounded corners on all four sides of an element’s border. It also covers support for the shorthand.
Last updated on : 2023-03-20
Browser Versions
IE
Edge
Firefox
Chrome
Safari
Opera
Fully Supported
Partially
No Support
Formal Definition
Inherited
no
Applies to
all elements; but User Agents are not required to apply to table and inline-table elements when border-collapse is collapse. The behavior on internal table elements is undefined for the moment.. It also applies to ::first-letter.
Percentages
refer to the corresponding dimension of the border box
Initial value
border-top-left-radius: 0 border-top-right-radius: 0 border-bottom-right-radius: 0 border-bottom-left-radius: 0
Animation type
border-top-left-radius: a length, percentage or calc(); border-top-right-radius: a length, percentage or calc(); border-bottom-right-radius: a length, percentage or calc(); border-bottom-left-radius: a length, percentage or calc();
Computed value
border-bottom-left-radius: two absolute <length>s or <percentage>s border-bottom-right-radius: two absolute <length>s or <percentage>s border-top-left-radius: two absolute <length>s or <percentage>s border-top-right-radius: two absolute <length>s or <percentage>s
Specifications
CSS Backgrounds and Borders Module Level 4 # border-radius
Syntax
/* The syntax of the first radius allows one to four values */
/* Radius is set for all 4 sides */
border-radius: 10px;
/* top-left-and-bottom-right | top-right-and-bottom-left */
border-radius: 10px 5%;
/* top-left | top-right-and-bottom-left | bottom-right */
border-radius: 2px 4px 2px;
/* top-left | top-right | bottom-right | bottom-left */
border-radius: 1px 0 3px 4px;
/* The syntax of the second radius allows one to four values */
/* (first radius values) / radius */
border-radius: 10px / 20px;
/* (first radius values) / top-left-and-bottom-right | top-right-and-bottom-left */
border-radius: 10px 5% / 20px 30px;
/* (first radius values) / top-left | top-right-and-bottom-left | bottom-right */
border-radius: 10px 5px 2em / 20px 25px 30%;
/* (first radius values) / top-left | top-right | bottom-right | bottom-left */
border-radius: 10px 5% / 20px 25em 30px 35em;
/* Global values */
border-radius: inherit;
border-radius: initial;
border-radius: revert;
border-radius: unset;
Browser Compatibility
CSS3 Border-radius (rounded corners) on IE is fully supported on 9-11, and not supported on 5.5-8 IE versions.
CSS3 Border-radius (rounded corners) on Edge is fully supported on all Edge versions.
CSS3 Border-radius (rounded corners) on Firefox is fully supported on 3.6-113 and partially supported on 2-2 Firefox versions.
CSS3 Border-radius (rounded corners) on Chrome is fully supported on all Chrome versions.
CSS3 Border-radius (rounded corners) on Safari is fully supported on all Safari versions.
CSS3 Border-radius (rounded corners) on Opera is fully supported on 10.5-95, and not supported on 9.5-10 Opera versions.
CSS3 Border-radius (rounded corners) on Safari on iOS is fully supported on all Safari on iOS versions.
CSS3 Border-radius (rounded corners) on Android Browser is fully supported on all Android Browser versions.
CSS3 Border-radius (rounded corners) on Opera Mobile is fully supported on 11.5-73, and not supported on 10-10 Opera Mobile versions.
CSS3 Border-radius (rounded corners) on Chrome for Android is fully supported on all Chrome for Android versions.
CSS3 Border-radius (rounded corners) on Firefox for Android is fully supported on all Firefox for Android versions.
CSS3 Border-radius (rounded corners) on Samsung Internet is fully supported on all Samsung Internet versions.
Browser Support for CSS3 Border-radius (rounded corners)
CSS3 Border-radius (rounded corners) on Chrome
CSS3 Border-radius (rounded corners) on Safari
CSS3 Border-radius (rounded corners) on Firefox
CSS3 Border-radius (rounded corners) on Internet Explorer
CSS3 Border-radius (rounded corners) on Opera
CSS3 Border-radius (rounded corners) on EdgeReferences
Data sourced from
Overall Browser Compatibility Score
Note:CSS3 Border-radius (rounded corners) shows a browser compatibility score of 100. This is a collective score out of 100 to represent browser support of a web technology. The higher this score is, the greater is the browser compatibility. The browser compatibility score is not a 100% reflection for every browser and the web technology support. However, it does give you an estimate on how much you should rely on a particular web technology in terms of browser compatibility.
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