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    margin-left

    Summary

    Area on which CSS margin-left applyThe margin-left CSS property sets the margin space required on the left side of a box associated with an element. A negative value is also allowed.

    The vertical margins of two adjacent boxes may fuse. This is called margin collapsing.

    In the rare cases where width is overconstrained (that is when all of width, margin-left, border, padding, the content area and margin-right are defined), margin-left is ignored, and will have the same calculated value as if the auto value was specified.

    • Initial value 0
    • Applies to all elements except elements with table display types other than table-caption, table and inline-table. It also applies to ::first-letter.
    • 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

    Syntax

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

    Values

    <length>
    Is a <length> specifying a fixed width: it can be absolute width, e.g. in px, or a width relative to the text size, e.g. in em, or relative to the viewport size, e.g. in vh.
    <percentage>
    Is a <percentage> relative to the width of the nearest containing block.
    auto
    Is a keyword indicating that the left margin receives a share of the remaining space, defined mainly by the current layout mode.. If there several auto values for margin-left or margin-right, the calculated space is evenly distributed between all the auto values. This table summarizes the different cases:
    Value of display Value of float Value of position Computed value of auto Comment
    inline, inline-block, inline-table any static or relative 0 Inline layout mode
    block, inline, inline-block, block, table, inline-table, list-item, table-caption any static or relative 0, except if both margin-left and margin-right are set to auto. In this case, it is set to the value centering the element inside its parent. Block layout mode
    block, inline, inline-block, block, table, inline-table, list-item, table-caption left or right static or relative 0 Block layout mode (floating element)
    any table-*, except table-caption any any 0 Internal table-* elements don't have margins, use border-spacing instead
    any, except flex, inline-flex, or table-* any fixed or absolute 0, except if both margin-left and margin-right are set to auto. In this case, it is set to the value centering the border area inside the available width, if fixed. Absolutely positioned layout mode
    flex, inline-flex any any 0, except if there is any positive horizontal free space. In this case, it is evenly distributed to all horizontal auto margins. Flexbox layout mode

    Formal syntax

    <length> | <percentage> | auto

    Examples

    .content { margin-left:   5%; }
    .sidebox { margin-left: 10px; }
    .logo    { margin-left: -5px; }
    

    Specifications

    Specification Status Comment
    CSS Basic Box Model
    The definition of 'margin-left' in that specification.
    Working Draft No significant change from CSS 2.1.
    CSS Transitions
    The definition of 'margin-left' in that specification.
    Working Draft Defines margin-left as animatable.
    CSS Flexible Box Layout Module
    The definition of 'margin-left' in that specification.
    Candidate Recommendation Defines the behavior of margin-left on flex items.
    CSS Level 2 (Revision 1)
    The definition of 'margin-left' in that specification.
    Recommendation Like in CSS1, but removes its effect on inline elements.
    CSS Level 1
    The definition of 'margin-left' in that specification.
    Recommendation Initial definition.

    Browser compatibility

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

    See also

    Document Tags and Contributors

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    Last updated by: Sebastianz,
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