The <strong><code>margin-bottom</code></strong> <a href="/en-US/docs/Web/CSS">CSS</a> property sets the <a href="/en-US/docs/Web/CSS/CSSBoxModel/IntroductiontotheCSSboxmodel#marginarea">margin area</a> on the bottom of an element. A positive value places it farther from its neighbors, while a negative value places it closer.

<pre class="brush: css notranslate"><code><span class="token comment">/ &lt;length&gt; values /</span> <span class="token property">margin-bottom</span><span class="token punctuation">:</span> 10px<span class="token punctuation">;</span> <span class="token comment">/ An absolute length /</span> <span class="token property">margin-bottom</span><span class="token punctuation">:</span> 1em<span class="token punctuation">;</span> <span class="token comment">/ relative to the text size /</span> <span class="token property">margin-bottom</span><span class="token punctuation">:</span> 5%<span class="token punctuation">;</span> <span class="token comment">/ relative to the nearest block container's width /</span> <span class="token comment">/ Keyword values /</span> <span class="token property">margin-bottom</span><span class="token punctuation">:</span> auto<span class="token punctuation">;</span> <span class="token comment">/ Global values /</span> <span class="token property">margin-bottom</span><span class="token punctuation">:</span> inherit<span class="token punctuation">;</span> <span class="token property">margin-bottom</span><span class="token punctuation">:</span> initial<span class="token punctuation">;</span> <span class="token property">margin-bottom</span><span class="token punctuation">:</span> revert<span class="token punctuation">;</span> <span class="token property">margin-bottom</span><span class="token punctuation">:</span> unset<span class="token punctuation">;</span> </code></pre>

margin-bottom

The margin-bottom CSS property sets the margin area on the bottom of an element. A positive value places it farther from its neighbors, while a negative value places it closer.

This property has no effect on non-replaced inline elements, such as <span> or <code>.

Syntax

/* <length> values */ margin-bottom: 10px;  /* An absolute length */ margin-bottom: 1em;   /* relative to the text size */ margin-bottom: 5%;    /* relative to the nearest block container's width */  /* Keyword values */ margin-bottom: auto;  /* Global values */ margin-bottom: inherit; margin-bottom: initial; margin-bottom: revert; margin-bottom: unset; 

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

Values

The size of the margin as a fixed value.

The size of the margin as a percentage, relative to the width of the containing block.

The browser selects a suitable value to use. See margin.

Formal definition

Formal syntax

<length> | <percentage> | auto

Examples

Setting positive and negative bottom margins

<div class="container"> <div class="box0">Box 0</div> <div class="box1">Box 1</div> <div class="box2">Box one's negative margin pulls me up</div> </div> 

CSS for divs to set margin-bottom and height

.box0 {     margin-bottom:1em;     height:3em; } .box1 {     margin-bottom:-1.5em;     height:4em; } .box2 {     border:1px dashed black;     border-width:1px 0;     margin-bottom:2em; } 

Some definitions for container and divs so margins' effects can be seen more clearly

.container {     background-color:orange;     width:320px;     border:1px solid black; } div {     width:320px;     background-color:gold; } 

Specifications

See also

Last modified: Nov 8, 2021, by MDN contributors