margin-top property CSS Reference

Definition and Usage

The margin-top CSS property of an element sets the margin space required on the top of an element. A negative value is also allowed.

This property has no effect on non-replaced inline elements, like <tt> or <span>.

  • Initial 0
  • Applies to all elements except elements with table display types other than table-caption, table and inline-table
  • Inherited no
  • Percentages refer to the width of the containing block
  • Media visual
  • Computed Value the percentage as specified or the absolute length
  • Animatable yes, as a length
  • Canonical order the unique non-ambiguous order defined by the formal grammar


Formal syntax: <length> | <percentage> | auto
margin-top: 10px;        /* An absolute length */
margin-top: 1em;         /* A length relative to the text size */
margin-top: 5%;          /* A margin relative to the nearest block container's height */
margin-top: auto;
margin-top: inherit;


Specifies a fixed width. See <length> for possible values.
A <percentage> always relative to the width of the containing block.
See margin.


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


Desktop browsers

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 1.0 1.0 (1.7 or earlier) 3.0 3.5 1.0 (85)
auto value 1.0 1.0 (1.7 or earlier) 6.0 (strict mode) 3.5 1.0 (85)

Mobile browsers

Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support 1.0 1.0 (1) 6.0 6.0 1.0

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