Browser Compatibility Testing of CSS3 Box-sizing

Get Started

Browser Compatibility Testing of CSS3 Box-sizing

CSS3 Box-sizing

Method of specifying whether or not an element's borders and padding should be included in size units. Box-sizing is a CSS property that makes CSS layouts work intuitively. If you’ve been working with CSS for any period of time, you know that using properties like width, padding, and border can be confusing. Sometimes when you use the width property, it doesn’t always apply in the way that you might expect. However, with proper box-sizing, a width of 200px really means a rendered width of 200px. It doesn’t involve any JavaScript magic, and it even works across browsers as far back as IE8.

Sign Up For Free

online web app testing



Google Chrome

CSS3 Box-sizing is partially compatible with prefix -webkit- for Chrome browser version 4 to Chrome browser version 9. Chrome browser version 10 to Chrome browser version 67 supports this browser property.

Mozilla Firefox

CSS3 Box-sizing is partially supported with prefix -moz- for Mozilla Firefox browser version 2 to Mozilla Firefox browser version 28. Mozilla Firefox browser version 29 to Mozilla Firefox browser version 60 supports this browser property.

Internet Explorer

Internet Explorer browser version 6 and Internet Explorer browser version 7 doesn't support this browser element. Internet Explorer browser version 8 to Internet Explorer browser version 11 supports this property.


Safari browser version 3.1 to Safari browser version 5 partially support this web element with prefix -webkit-.Later Safari browser version 5.1 to Safari browser version 11.1 supports this browser element.

Microsoft Edge

CSS3 Box-sizing element is supported by Microsoft Edge browser.


Opera browser supports this browser property.

Test your Web App on LambdaTest

With LambdaTest you can test your website on 2000+ browser and OS combinations for cross browser compatibility issues and ensure that your webpage fallbacks are working fine on browsers that do not support CSS background-blend-mode.

All Browser Versions

Real Time Testing on Chrome browser
Information sourced from

"Can I use" provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers.

Other Browser Elements and Properties

All websites and webapps use collections of a lot of browser technologies and elements. Not all of these elements are supported by all browsers and browser versions. At LambdaTest you can test your website on all browsers and browser versions and easily debug browser compatibility issues in real time.

Checkout All Elements


Fastest Way for Cross Browser Testing

Test your website on Firefox

You can test your website for cross browser compatibility across all Firefox browser versions using LambdaTest

Test your website on Chrome

Perform cross browser testing of your website/ webapp across all Chrome browser versions using LambdaTest

Test your website on Safari

Check your website on all Safari browser on Mac and Windows for cross browser compatibility with LambdaTest

Test your website on IE

Perfrom cross browser testing of your website/ web app across all IE verions using LambdaTest

Free Plan With 60 Minutes of Live Testing

Our plans starts with a free plan where you access to all features and free 60 minutes of live testing per month.

Scale As You Go

Need support for a larger team? We have very flexible plans and if they don’t suffice, leave us a message here, and we would help you out.