Фон для TR

background-image

Устанавливает фоновое изображение для элемента. Если одновременно для элемента задан цвет фона, он будет показан, пока фоновая картинка не загрузится полностью. То же произойдет, если изображения не доступны или их показ в браузере отключен. В случае наличия в рисунке прозрачных областей, через них будет проглядывать фоновый цвет. В CSS3 допустимо указывать несколько фоновых изображений, перечисляя их параметры через запятую.

Синтаксис

background-image: url(путь к файлу) | none | inherit

background-image: url(путь к файлу) | none[, url(путь к файлу) | none]*

Значения

url В качестве значения используется путь к графическому файлу, который указывается внутри конструкции url() . Путь к файлу при этом можно писать как в кавычках (двойных или одинарных), так и без них. none Отменяет фоновое изображение для элемента. inherit Наследует значение родителя.

HTML5 CSS2.1 IE Cr Op Sa Fx

Объектная модель

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

Браузеры

Internet Explorer до версии 7.0 включительно применяет фон к внутренней части границы элемента, у которого установлено свойство hasLayout . Если у элемента нет hasLayout , свойство background-image будет учитывать границы элемента, как это и задано в спецификации. Разница в отображении будет заметна, если границы пунктирные ( dashed или dotted ), а не сплошные.

Если для элемента значение overflow установлено как scroll или auto , в Internet Explorer 8 будет вертикальная задержка в один пиксел при прокрутке фона.

Internet Explorer до версии 7.0 включительно не поддерживает значение inherit .

HTML5 CSS2.1 IE Cr Op Sa Fx

        
 
1
2
3
 
 
  

Результат данного примера в браузере Chrome показан на рис. 1. Браузер Internet Explorer, Opera и Firefox корректно отображают фон для строки (рис. 2).

Рис. 1. Повторение фона для каждой ячейки

Рис. 2. Фон для всей строки

Источник

HTML Background Images

A background image can be specified for almost any HTML element.

Background Image on a HTML element

To add a background image on an HTML element, use the HTML style attribute and the CSS background-image property:

Example

Add a background image on a HTML element:

You can also specify the background image in the element, in the section:

Example

Specify the background image in the element:

Background Image on a Page

If you want the entire page to have a background image, you must specify the background image on the element:

Example

Add a background image for the entire page:

Background Repeat

If the background image is smaller than the element, the image will repeat itself, horizontally and vertically, until it reaches the end of the element:

Example

To avoid the background image from repeating itself, set the background-repeat property to no-repeat .

Example

Background Cover

If you want the background image to cover the entire element, you can set the background-size property to cover.

Also, to make sure the entire element is always covered, set the background-attachment property to fixed:

This way, the background image will cover the entire element, with no stretching (the image will keep its original proportions):

Example

Background Stretch

If you want the background image to stretch to fit the entire element, you can set the background-size property to 100% 100% :

Try resizing the browser window, and you will see that the image will stretch, but always cover the entire element.

Example

Learn More CSS

From the examples above you have learned that background images can be styled by using the CSS background properties.

To learn more about CSS background properties, study our CSS Background Tutorial.

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background

The background shorthand CSS property sets all background style properties at once, such as color, image, origin and size, or repeat method. Component properties not set in the background shorthand property value declaration are set to their default values.

Try it

Constituent properties

This property is a shorthand for the following CSS properties:

Syntax

/* Using a */ background: green; /* Using a and */ background: url("test.jpg") repeat-y; /* Using a and */ background: border-box red; /* A single image, centered and scaled */ background: no-repeat center/80% url("../img/image.png"); /* Global values */ background: inherit; background: initial; background: revert; background: revert-layer; background: unset; 

The background property is specified as one or more background layers, separated by commas.

The syntax of each layer is as follows:

• Each layer may include zero or one occurrences of any of the following values:
  • The value may only be included immediately after , separated with the ‘/’ character, like this: » center/80% «.
  • The value may be included zero, one, or two times. If included once, it sets both background-origin and background-clip . If it is included twice, the first occurrence sets background-origin , and the second sets background-clip .
  • The value may only be included in the last layer specified.

  Values

  See background-clip and background-origin . Default: border-box and padding-box respectively.

  See background-color . Default: transparent .

  The following three lines of CSS are equivalent:

  background: none; background: transparent; background: repeat scroll 0% 0% / auto padding-box border-box none transparent; 

  Accessibility concerns

  Browsers do not provide any special information on background images to assistive technology. This is important primarily for screen readers, as a screen reader will not announce its presence and therefore convey nothing to its users. If the image contains information critical to understanding the page’s overall purpose, it is better to describe it semantically in the document.

  Formal definition

  • background-image : none
  • background-position : 0% 0%
  • background-size : auto auto
  • background-repeat : repeat
  • background-origin : padding-box
  • background-clip : border-box
  • background-attachment : scroll
  • background-color : transparent
  • background-position : refer to the size of the background positioning area minus size of background image; size refers to the width for horizontal offsets and to the height for vertical offsets
  • background-size : relative to the background positioning area
  • background-image : as specified, but with url() values made absolute
  • background-position : as each of the properties of the shorthand:
    • background-position-x : A list, each item consisting of: an offset given as a combination of an absolute length and a percentage, plus an origin keyword
    • background-position-y : A list, each item consisting of: an offset given as a combination of an absolute length and a percentage, plus an origin keyword
    • background-color : a color
    • background-image : discrete
    • background-clip : a repeatable list of
    • background-position : a repeatable list of
    • background-size : a repeatable list of
    • background-repeat : discrete
    • background-attachment : discrete

    Formal syntax

    background =
    [ # , ]?

    =
    ||
    [ / ]? ||
    ||
    ||
    ||
    

    =
    ||
    ||
    [ / ]? ||
    ||
    ||
    ||
    

    =
    |
    none

    =
    [ left | center | right | top | bottom | ] |
    [ left | center | right | ] [ top | center | bottom | ] |
    [ center | [ left | right ] ? ] && [ center | [ top | bottom ] ? ]

    =
    [ | auto ] |
    cover |
    contain

    =
    repeat-x |
    repeat-y |
    [ repeat | space | round | no-repeat ]

    =
    scroll |
    fixed |
    local

    =
    border-box |
    padding-box |
    content-box

    =
    |

    =
    |

    =
    url( * ) |
    src( * )

    Examples

    Setting backgrounds with color keywords and images

    HTML

    p class="topbanner"> Starry skybr /> Twinkle twinklebr /> Starry sky p> p class="warning">Here is a paragraphp> p>p> 

    CSS

    .warning  background: pink; > .topbanner  background: url("starsolid.gif") #99f repeat-y fixed; > 

    Result

    Specifications

    Browser compatibility

    BCD tables only load in the browser

    See also

    Found a content problem with this page?

    This page was last modified on Jul 18, 2023 by MDN contributors.

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