In CSS, size and overflow properties play a crucial role in controlling how an element is displayed, how its content fits within its box, and how overflow content is handled. Together, they help create flexible, responsive layouts that adjust to varying content sizes and screen dimensions.

1. Aspect Ratio
The aspect-ratio
property in CSS is used to control the proportional relationship between an element’s width and height. This makes it easier to maintain consistent sizing and layout behavior, especially for responsive designs, images, videos, and containers with dynamic content.
2. Width
The width
property defines the horizontal size of an element’s content area. It is one of the most commonly used properties when designing layouts, ensuring elements fit as intended across various screen sizes and devices.
3. Min Width
The min-width
property in CSS sets the minimum width an element can be. It prevents the element from becoming smaller than the value you specify, even when the content or parent container tries to shrink it.
4. Max Width
The max-width
property in CSS sets the maximum width an element can grow to, preventing it from expanding beyond a specified size. It’s especially useful in responsive design to maintain readability and prevent layouts from breaking on large screens.
5. Height
The height
property in CSS is used to define the vertical size of an element’s content area. It plays a key role in layout design, helping you control how tall boxes, containers, images, or other elements should appear on the page.
6. Min Height
The min-height
property in CSS defines the minimum height an element can be. It ensures that an element never becomes shorter than the specified value, even if its content or parent layout tries to shrink it.
7. Max Height
The max-height
property in CSS defines the maximum height an element can grow to. It ensures that the element never becomes taller than the specified value, even if its content tries to overflow.
8. Overflow
The overflow
property in CSS controls what happens when content overflows an element’s box — that is, when it’s too large to fit inside the set width or height of the element.
- Overflow-X: The
overflow-x
property in CSS specifically controls the horizontal overflow of content within an element. It determines what happens when content exceeds the width of its container along the horizontal axis (left and right sides). - Overflow-Y: The
overflow-y
property in CSS specifically controls the vertical overflow of content within an element. It determines what happens when content exceeds the height of its container along the vertical axis (top and bottom sides).