MDN wants to learn about developers like you: https://qsurvey.mozilla.com/s3/MDN-dev-survey

The margin-top CSS property sets the margin area on the top of an element. A positive value will place it farther than normal from its neighbors, while a negative value will place it closer.

/* <length> values */
margin-top: 10px;  /* An absolute length */
margin-top: 1em;   /* relative to the text size */
margin-top: 5%;    /* relative to the nearest block container's width */

/* Keyword values */
margin-top: auto;

/* Global values */
margin-top: inherit;
margin-top: initial;
margin-top: unset;

The effect of the CSS margin-top property on the element box

Initial value0
Applies toall elements, except elements with table display types other than table-caption, table and inline-table. It also applies to ::first-letter.
Inheritedno
Percentagesrefer to the width of the containing block
Mediavisual
Computed valuethe percentage as specified or the absolute length
Animation typea length
Canonical orderthe unique non-ambiguous order defined by the formal grammar

Syntax

The margin-top property is specified as the keyword auto, or a <length>, or a <percentage>. Its value can be positive, zero, or negative.

Values

<length>
The size of the margin as a fixed value.
<percentage>
The size of the margin as a percentage, relative to the width of the containing block.
auto
The browser selects a suitable value to use. See margin.

Formal syntax

<length> | <percentage> | auto

Examples

.content { margin-top:   5%; }
.sidebox { margin-top: 10px; }
.logo    { margin-top: -5px; }
#footer  { margin-top:  1em; } 

Specifications

Specification Status Comment
CSS Basic Box Model
The definition of 'margin-top' in that specification.
Working Draft No significant change
CSS Transitions
The definition of 'margin-top' in that specification.
Working Draft Defines margin-top as animatable.
CSS Level 2 (Revision 1)
The definition of 'margin-top' in that specification.
Recommendation Removes its effect on inline elements.
CSS Level 1
The definition of 'margin-top' in that specification.
Recommendation Initial definition

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 1.0 (Yes) 1.0 (1.7 or earlier) 3.0 3.5 1.0 (85)
auto value 1.0 (Yes) 1.0 (1.7 or earlier) 6.0 (strict mode) 3.5 1.0 (85)
Feature Android Edge Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support 1.0 (Yes) 1.0 (1) 6.0 6.0 1.0

Document Tags and Contributors

 Last updated by: mfluehr,