🧨 Box Sizing Border Box Vs Content Box

The box-sizing property in CSS controls how the box model is handled for the element it applies to. .module { box-sizing: border-box; } One of the more common ways to use it is to apply it to all elements on the page, pseudo elements included: *, *::before, *::after { box-sizing: border-box; } This is often called “universal box-sizing Властивість box-sizing може отримувати 4 значення: content-box. Грунтується на стандартах CSS, при цьому властивості width і height задають ширину і висоту контенту і не включають в себе значення відступів By default it takes the value content-box. When box-sizing: border box, property-value combination is used in an element, this tells the browser to render the width property as the actual rendered border-box and content-box I get what they do, I think, and you are supposed to use border-box for layouts and content-box for use with the positioning, but I don't really get why use content with positioning and I don't get what layouts are because everything is a layout. background-clip lets you control how far a background image or color extends beyond an element’s padding or content. .frame { background-clip: padding-box; } Values. border-box is the default value. This allows the background to extend all the way to the outside edge of the element’s border. padding-box clips the background at the outside border-boxの設定を変更しないことです。. LPのコーディングを進めているときに box-sizing:content-boxの指定を忘れていたからと、途中で指定をするとそれまでにコーディングしてきた箇所の見た目が大きく変わってしまうことがあります。 box-sizing: border-box. Meaning of width means from border to border. The default behavior is called CSS Box Model. Normally, width means the content of a element. If you add padding and border, the result width from border to border will be bigger than the width value you used. Suppose you have 2 div each has width: 50%. The CSS box alignment module specifies CSS features that relate to the alignment of boxes in the various CSS box layout models: block layout, table layout, flex layout, and grid layout. The module aims to create a consistent method of alignment across all of CSS. This document details the general concepts found in the specification. .my-box { box-sizing: border-box; width: 200px; border: 10px solid; padding: 20px; } This alternative box model tells CSS to apply the width to the border box instead of the content box. This means that our border and padding get pushed in , and as a result, when you set .my-box to be 200px wide: it actually renders at 200px wide. box-border (Tailwind) is the equivalent to box-sizing: border-box; (CSS). If you want to apply this style to all your elements, you should use @layer base in your main.css. This way you apply styles to specific elements, it's mostly used for elements such as h1 and p but it should work the same way with *. Here's the part in the documentation The best way I have seen so far of getting box-sizing working is: html { -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; } *, *::before, *::after { -webkit-box-sizing: inherit; -moz-box-sizing: inherit; box-sizing: inherit; } If your CSS reset (normalize.css) is inserted at the very top of your stylesheet Also you should take note that padding is included in total width/height the element, when used with box-sizing: border-box; so if you have width: 100px; padding-left: 20px; the total width will still be 100px but the area for content is reduce by 20px, unlike box-sizing: content-box; where padding is separate in calculating content width which If you have box-sizing: content-box (content-box is default), content area is "height" and "width". If you add border, content area will not change, border size will be added to the content area. If you add border, content area will not change, border size will be added to the content area. Hello. I’m struggling to understand how the border-box value of the box-sizing property works and why it’s so embraced by the front-end community. What I know is that the border-box value relates to the width of the overall container rather than the content box. So if, say, I have an element that’s 200px wide that element should only be 200px and no wider than that. However, I El valor border-box en el box-sizing hace que el padding y el border pasen a formar parte del cálculo del ancho de la caja y no lo suman posteriormente. En el siguiente ejemplo tendríamos una caja de 250px de ancho ya el padding y el border ya forman parte del cálculo del width del elemento: div { box-sizing: border-box; width: 250px; border .

box sizing border box vs content box