How can you make all elements behave as border-box and block-level by default?

Q: How can you make all elements behave as border-box and block-level by default?

You can use the universal selector `*` and pseudo-elements `*::before` and `*::after` to apply default styles to all elements. Setting `box-sizing: border-box` ensures padding and borders are included in an element's width and height, and setting `display: block` makes elements behave as block-level by default. /* Apply border-box sizing to all elements */ *, *::before, *::after { box-sizing: border-box; } /* Make all elements block-level by default */ * { display: block; } After applying this, all elements will use `border-box` for sizing and behave as `block`. You can still override these defaults for specific elements using more specific selectors (e.g., `inline`, `inline-block`, `flex`, etc.). Use `box-sizing: border-box` to simplify layout calculations and prevent unexpected width/height growth due to padding or borders. Be cautious when setting `display: block` globally, as some inline elements (like ` ` or ` `) may need different display types for correct layout. Override the global `display: block` for components that require `flex`, `inline`, `inline-block`, or `grid`. Combine these global defaults with a CSS reset or normalize.css for consistent cross-browser styling.

Difficulty: 6/10

CSS Box Model, CSS Resets, Layout Architecture

Setting All Elements to border-box and Block-Level Using CSS

You can use the universal selector * and pseudo-elements *::before and *::after to apply default styles to all elements. Setting box-sizing: border-box ensures padding and borders are included in an element's width and height, and setting display: block makes elements behave as block-level by default.

Example: Global Border-Box and Block-Level Defaults

After applying this, all elements will use border-box for sizing and behave as . You can still override these defaults for specific elements using more specific selectors (e.g., , , , etc.).

How can you make all elements behave as border-box and block-level by default?

Difficulty: 6/10

CSS Box Model, CSS Resets, Layout Architecture

Setting All Elements to border-box and Block-Level Using CSS

Example: Global Border-Box and Block-Level Defaults

After applying this, all elements will use border-box for sizing and behave as . You can still override these defaults for specific elements using more specific selectors (e.g., , , , etc.).

How can you make all elements behave as border-box and block-level by default?

Setting All Elements to border-box and Block-Level Using CSS

How can you make all elements behave as border-box and block-level by default?

Setting All Elements to border-box and Block-Level Using CSS

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