Controlling Layout with the Box Model
Learn the CSS box model to fix issues like unexpected sizes, collapsing margins, and spacing inconsistencies.
Understanding how to control layout is fundamental in CSS, and the box model lies at the heart of this process. The box model defines how elements are rendered and how they interact with one another on a web page. With the box model, we can precisely manipulate the spacing, borders, and sizes of elements, leading to more predictable and maintainable layouts.
Adjusting borders and box-sizing
Understanding how to modify borders and control the box model with the box-sizing property is essential for achieving precise layout designs and managing element dimensions effectively.
Box-sizing
The box-sizing property defines how the total width and height of an element are calculated.
content-box(default): The width and height apply to the content only. Padding and borders are added outside the content’s dimensions, increasing the overall size.border-box: The width and height include content, padding, and border. This makes the total size of the element predictable and consistent.