CSS height Property
Sets the height of an element's content area
Syntax
height: auto | <length> | <percentage> | min-content | max-content | fit-content;Values
| Value | Description |
|---|---|
| auto | Browser calculates the height |
| <length> | Fixed height |
| <percentage> | Percentage of containing block |
| 100vh | Full viewport height |
Example
.full-screen {
height: 100vh;
display: flex;
align-items: center;
}Understanding CSS height
The CSS height property sets the height of an element's content area. As part of the Box Model module in CSS, it is one of the most commonly used properties for controlling the visual presentation of web pages.
You can set height to values such as auto, <length>, <percentage>, 100vh, among others. Each value changes how the browser renders the affected element, giving you fine-grained control over your page layout and design. Choosing the right value depends on the specific design requirements of your project.
Common use cases for the height property include responsive web design, component-based layouts, and creating visually consistent interfaces across devices. It works closely with related properties like width, min-height, max-height to achieve complex styling effects. Understanding how these properties interact helps you write cleaner, more maintainable stylesheets.
Browser support for height is excellent across all modern browsers including Chrome, Firefox, Safari, and Edge. For older browsers, consider using fallback values or progressive enhancement strategies. The property can also be set dynamically via JavaScript using element.style.height or the CSS custom properties (variables) approach for theming.
Related Properties
widthSets the width of an element's content area
min-heightSets the minimum height of an element preventing it from becoming shorter
max-heightSets the maximum height of an element preventing it from becoming taller
box-sizingDefines how the total width and height of an element is calculated
block-sizeSets the size of an element in the block direction (height in horizontal writing mode)
Explore More CSS Properties
Browse our complete reference of 251 CSS properties with syntax, examples, and tips.