margin-top

Baseline Widely available *

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

* Some parts of this feature may have varying levels of support.

Sumário

The effect of the CSS margin-top property on the element box A propriedade CSS margin-top de um elemento indica o espaço acima do elemento. Valores negativos são aceitos.

Essa propriedade não tem efeito em elementos non-replaced inline elements, como <tt> ou <span>.

Initial value	`0`
Aplica-se a	all elements, except elements with table `display` types other than `table-caption`, `table` and `inline-table`. It also applies to `::first-letter`.
Inherited	não
Percentages	refer to the width of the containing block
Computed value	the percentage as specified or the absolute length
Animation type	a length

Sintaxe

css

/* Valores <length> */
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 width */

/* Valores padrão */
margin-top: auto;

/* Valores globais */
margin-top: inherit;
margin-top: initial;
margin-top: unset;

Valores

<length>: Especifica um tamanho fixo. Veja <length> para possíveis valores.
<porcentagem>: Um <percentage> sempre relativo ao width do bloco.
auto: Veja margin.

Sintaxe formal

margin-top = 
  <length-percentage>  |
  auto                 |
  <anchor-size()>      

<length-percentage> = 
  <length>      |
  <percentage>  

<anchor-size()> = 
  anchor-size( [ <anchor-name> || <anchor-size> ]? , <length-percentage>? )  

<anchor-name> = 
  <dashed-ident>  

<anchor-size> = 
  width        |
  height       |
  block        |
  inline       |
  self-block   |
  self-inline

Exemplos

css

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

Especificações

Specification
CSS Box Model Module Level 3 # margin-physical