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max-width

The max-width CSS property sets the maximum width of an element. It prevents the used value of the width property from becoming larger than the value specified by max-width .

Try it

max-width overrides width , but min-width overrides max-width .

Syntax

/* value */ max-width: 3.5em; /* value */ max-width: 75%; /* Keyword values */ max-width: none; max-width: max-content; max-width: min-content; max-width: fit-content(20em); /* Global values */ max-width: inherit; max-width: initial; max-width: revert; max-width: revert-layer; max-width: unset; 

Values

Defines the max-width as an absolute value.

Defines the max-width as a percentage of the containing block’s width.

No limit on the size of the box.

The intrinsic preferred max-width .

The intrinsic minimum max-width .

Uses the fit-content formula with the available space replaced by the specified argument, i.e. min(max-content, max(min-content, argument)) .

Accessibility concerns

Ensure that elements set with a max-width are not truncated and/or do not obscure other content when the page is zoomed to increase text size.

Formal definition

Initial value	none
Applies to	all elements but non-replaced inline elements, table rows, and row groups
Inherited	no
Percentages	refer to the width of the containing block
Computed value	the percentage as specified or the absolute length or none
Animation type	a length, percentage or calc();

Formal syntax

max-width =
none |
|
min-content |
max-content |
fit-content( )

=
|

Examples

Setting max width in pixels

In this example, the «child» will be either 150 pixels wide or the width of the «parent,» whichever is smaller.

HTML

div id="parent"> div id="child"> Fusce pulvinar vestibulum eros, sed luctus ex lobortis quis. div> div> 

CSS

#parent  background: lightblue; width: 300px; > #child  background: gold; width: 100%; max-width: 150px; > 

Result

Specifications

Browser compatibility

BCD tables only load in the browser

See also

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CSS Height, Width and Max-width

The CSS height and width properties are used to set the height and width of an element.

The CSS max-width property is used to set the maximum width of an element.

CSS Setting height and width

The height and width properties are used to set the height and width of an element.

The height and width properties do not include padding, borders, or margins. It sets the height/width of the area inside the padding, border, and margin of the element.

CSS height and width Values

The height and width properties may have the following values:

• auto — This is default. The browser calculates the height and width
• length — Defines the height/width in px, cm, etc.
• % — Defines the height/width in percent of the containing block
• initial — Sets the height/width to its default value
• inherit — The height/width will be inherited from its parent value

CSS height and width Examples

Example

Set the height and width of a element:

Example

Set the height and width of another element:

Note: Remember that the height and width properties do not include padding, borders, or margins! They set the height/width of the area inside the padding, border, and margin of the element!

Setting max-width

The max-width property is used to set the maximum width of an element.

The max-width can be specified in length values, like px, cm, etc., or in percent (%) of the containing block, or set to none (this is default. Means that there is no maximum width).

The problem with the above occurs when the browser window is smaller than the width of the element (500px). The browser then adds a horizontal scrollbar to the page.

Using max-width instead, in this situation, will improve the browser’s handling of small windows.

Tip: Drag the browser window to smaller than 500px wide, to see the difference between the two divs!

Note: If you for some reason use both the width property and the max-width property on the same element, and the value of the width property is larger than the max-width property; the max-width property will be used (and the width property will be ignored).

Example

This element has a height of 100 pixels and a max-width of 500 pixels:

Try it Yourself — Examples

Set the height and width of elements
This example demonstrates how to set the height and width of different elements.

Set the height and width of an image using percent
This example demonstrates how to set the height and width of an image using a percent value.

Set min-width and max-width of an element
This example demonstrates how to set a minimum width and a maximum width of an element using a pixel value.

Set min-height and max-height of an element
This example demonstrates how to set a minimum height and a maximum height of an element using a pixel value.

All CSS Dimension Properties

Property	Description
height	Sets the height of an element
max-height	Sets the maximum height of an element
max-width	Sets the maximum width of an element
min-height	Sets the minimum height of an element
min-width	Sets the minimum width of an element
width	Sets the width of an element

Источник

max-width

Устанавливает максимальную ширину элемента. Значение ширины элемента будет вычисляться в зависимости от значений установленных свойств width , max-width и min-width . В табл. 1 показано, чем руководствуется браузер при совместном использовании указанных стилевых свойств.

Табл. 1. Ширина элемента

Значения свойств					Ширина
min-width		width		max-width	width
width		max-width	width
width	>	max-width	max-width
min-width	>	width	>	max-width	min-width
min-width	>	width		max-width	min-width

Данные из таблицы следует понимать следующим образом. Если значение ширины ( width ) больше значения max-width , то ширина элемента принимается равной значению max-width .

Синтаксис

max-width: значение | проценты | none | inherit

Значения

В качестве значений принимаются пикселы (px), проценты (%) и другие единицы измерения, принятые в CSS. Отрицательные значения не допускаются.

none Отменяет действие этого свойства. inherit Наследует значение родителя.

HTML5 CSS2.1 IE Cr Op Sa Fx

       
Текст заголовка
 
Текст примера
  

В данном примере ширина страницы ограничена размером 320 пикселов для всех наладонных устройств. К ним относятся КПК, смартфоны и другие устройства, способные отображать HTML-документы.

Объектная модель

[window.]document.getElementById(» elementID «).style.maxWidth

Браузеры

Internet Explorer до версии 7.0 включительно не поддерживает значение inherit .

Источник

CSS max-width Property

The max-width property defines the maximum width of an element.

If the content is larger than the maximum width, it will automatically change the height of the element.

If the content is smaller than the maximum width, the max-width property has no effect.

Note: This prevents the value of the width property from becoming larger than max-width . The value of the max-width property overrides the width property.

Default value:	none
Inherited:	no
Animatable:	yes, see individual properties. Read about animatable Try it
Version:	CSS2
JavaScript syntax:	object.style.maxWidth=»600px» Try it

Browser Support

The numbers in the table specify the first browser version that fully supports the property.

CSS Syntax

Property Values

Value	Description	Demo
none	No maximum width. This is default	Play it »
length	Defines the maximum width in px, cm, etc. Read about length units	Play it »
%	Defines the maximum width in percent of the containing block	Play it »
initial	Sets this property to its default value. Read about initial
inherit	Inherits this property from its parent element. Read about inherit

More Examples

Example

Set the maximum width of a

element to 50% of the container:

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