CSS GUIDE MARGIN

Summary

The margin property is used for setting the four margins in one declaration.

Inherited: No

Syntax

TARGET_ELEMENT {margin: 10px}

Legal Values

Values can be specified as pixels (px) or percentage (%)

Sets the properties for the margins. The values comes in % (defines a margin in % of the total height/width of the document), length (defines a fixed margin), and auto (the browser sets a margin).

Negative values are allowed.

Usage Examples

h1 {margin: 10px}
all four margins will be 10px

h1 {margin: 10px 2%}
top and bottom margin will be 10px, left and right margin will be 2% of the
total width of the document.

h1 {margin: 10px 2% -10px}
top margin will be 10px, left and right margin will be 2% of the total
width of the document, bottom margin will be -10px

h1 {margin: 10px 2% -10px auto}
top margin will be 10px, right margin will be 2% of the total width of
the document, bottom margin  will be -10px, left margin will be set by the browser

Notes

Negative values are allowed.

Specification Conformance

CSS1
CSS2
CSS3

See Also

W3Schools