min-width

The min-width CSS property sets the minimum width of an element. It prevents the used value of the width property from becoming smaller than the value specified for min-width.

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The element's width is set to the value of min-width whenever min-width is larger than max-width or width.

Syntax

/* <length> value */
min-width: 3.5em;

/* <percentage> value */
min-width: 10%;

/* Keyword values */
min-width: max-content;
min-width: min-content;
min-width: fit-content;
min-width: fill-available;

/* Global values */
min-width: inherit;
min-width: initial;
min-width: unset;

Values

<length>

The minimum width, expressed as a <length>. Negative values make the declaration invalid.

<percentage>

The minimum width, expressed as a <percentage> of the containing block's width. Negative values make the declaration invalid.

Keyword values

auto

Specifies an automatic minimum size. Unless otherwise defined by the relevant layout module, however, it resolves to a used value of 0. For backward-compatibility, the resolved value of this keyword is zero for boxes of all [CSS2] display types: block and inline boxes, inline blocks, and all the table layout boxes.

max-content

The intrinsic preferred width.

min-content

The intrinsic minimum width.

fill-available

The containing block's width minus the horizontal margin, border, and padding. (Note that some browsers implement an ancient name for this keyword, available.)

fit-content

Defined as min(max-content, max(min-content, fill-available)).

Formal syntax

<length> | <percentage> | auto | max-content | min-content | fit-content | fill-available

Examples

table { min-width: 75%; }

form { min-width: 0; }

Specifications

Browser compatibility

See also

• width, max-width
• The box model, box-sizing