Answer The box-sizing property controls how the total width and height of an element are calculated. The default value, content-box, means the width and height include only the content. The border-box value includes padding and border within the specified width and height.

Answer Use relative units like percentages for width, margin, and padding.

Use box-sizing: border-box to include padding and border in the element's total width and height calculations.

Implement media queries to adjust the layout based on different screen sizes.

Utilize flexible box layouts (Flexbox) or grid layouts (CSS Grid) for dynamic and adaptable designs.

Answer Margin collapsing occurs when the vertical margins of adjacent block-level elements collapse into a single margin. The resulting margin is equal to the largest of the overlapping margins. This helps to avoid adding extra space when two margins meet.

Answer For block-level elements, margin and padding affect the space around and within the element as expected. For inline elements, horizontal padding and margin affect spacing normally, but vertical padding and margin can behave differently, sometimes not affecting the surrounding line height.

Answer The overflow property controls what happens to content that overflows an element's box. Values include visible (default), hidden, scroll, and auto. It can affect layout and scroll behavior of content within the box.

Answer The outline property is used when you want to draw a line around an element without affecting its size or layout. This is often used for accessibility purposes, such as highlighting elements on focus without disturbing the layout, since outlines do not take up space.

Answer For block-level elements, margin and padding affect the space around and within the element as expected. For inline elements, horizontal padding and margin affect spacing normally, but vertical padding and margin can behave differently, sometimes not affecting the surrounding line height.