Detailed explanation of box-sizing in CSS3 (content-box and border-box)

Box-sizing in CSS3 (content-box and border-box)

The box-sizing property in CSS3 allows you to specify the box model in a specific way. There are two ways:

content-box: standard box model, also known as the W3C box model, which is generally used in modern browsers

border-box: Weird box model, box model in lower versions of IE browsers

The default for modern browsers and IE9+ is content-box.

Syntax format:

box-sizing：content-box | border-box

the difference:

content-box: padding and border are not included in the defined width and height.

The actual width of the box = the set width + padding + border

border-box: padding and border are included in the defined width and height.

The actual width of the box = the set width (padding and border do not affect the actual width)

Summarize

The above is what I introduced to you about box-sizing (content-box and border-box) in CSS3. I hope it will be helpful to you. If you have any questions, please leave me a message and I will reply to you in time. I would also like to thank everyone for their support of the 123WORDPRESS.COM website!