Фон для TR

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.

    Your blueprint for a better internet.

    MDN

    Support

    Our communities

    Developers

    Visit Mozilla Corporation’s not-for-profit parent, the Mozilla Foundation.
    Portions of this content are ©1998– 2023 by individual mozilla.org contributors. Content available under a Creative Commons license.

    Источник

    CSS background-image Property

    The background-image property sets one or more background images for an element.

    By default, a background-image is placed at the top-left corner of an element, and repeated both vertically and horizontally.

    Tip: The background of an element is the total size of the element, including padding and border (but not the margin).

    Tip: Always set a background-color to be used if the image is unavailable.

    Default value:	none
    Inherited:	no
    Animatable:	no. Read about animatable
    Version:	CSS1 + new values in CSS3
    JavaScript syntax:	object.style.backgroundImage=»url(img_tree.gif)» 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
    url(‘URL‘)	The URL to the image. To specify more than one image, separate the URLs with a comma	Demo ❯
    none	No background image will be displayed. This is default
    conic-gradient()	Sets a conic gradient as the background image. Define at least two colors	Demo ❯
    linear-gradient()	Sets a linear gradient as the background image. Define at least two colors (top to bottom)	Demo ❯
    radial-gradient()	Sets a radial gradient as the background image. Define at least two colors (center to edges)	Demo ❯
    repeating-conic-gradient()	Repeats a conic gradient	Demo ❯
    repeating-linear-gradient()	Repeats a linear gradient	Demo ❯
    repeating-radial-gradient()	Repeats a radial gradient	Demo ❯
    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

    Sets two background images for the element. Let the first image appear only once (with no-repeat), and let the second image be repeated:

    body <
    background-image: url(«img_tree.gif»), url(«paper.gif»);
    background-repeat: no-repeat, repeat;
    background-color: #cccccc;
    >
    

    Example

    Use different background properties to create a «hero» image:

    .hero-image <
    background-image: url(«photographer.jpg»); /* The image used */
    background-color: #cccccc; /* Used if the image is unavailable */
    height: 500px; /* You must set a specified height */
    background-position: center; /* Center the image */
    background-repeat: no-repeat; /* Do not repeat the image */
    background-size: cover; /* Resize the background image to cover the entire container */
    >
    

    Example

    Sets a linear-gradient (two colors) as a background image for a element:

    Example

    Sets a linear-gradient (three colors) as a background image for a element:

    #grad1 <
    height: 200px;
    background-color: #cccccc;
    background-image: linear-gradient(red, yellow, green);
    >
    

    Example

    The repeating-linear-gradient() function is used to repeat linear gradients:

    #grad1 <
    height: 200px;
    background-color: #cccccc;
    background-image: repeating-linear-gradient(red, yellow 10%, green 20%);
    >
    

    Example

    Sets a radial-gradient (two colors) as a background image for a element:

    Example

    Sets a radial-gradient (three colors) as a background image for a element:

    #grad1 <
    height: 200px;
    background-color: #cccccc;
    background-image: radial-gradient(red, yellow, green);
    >
    

    Example

    The repeating-radial-gradient() function is used to repeat radial gradients:

    #grad1 <
    height: 200px;
    background-color: #cccccc;
    background-image: repeating-radial-gradient(red, yellow 10%, green 20%);
    >
    

    Источник

    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.

    Источник

    CSS Background Image

    The background-image property specifies an image to use as the background of an element.

    By default, the image is repeated so it covers the entire element.

    Example

    Set the background image for a page:

    Example

    This example shows a bad combination of text and background image. The text is hardly readable:

    Note: When using a background image, use an image that does not disturb the text.

    The background image can also be set for specific elements, like the

    element:

    Example

    The CSS Background Image Property

    

    COLOR PICKER

    

    

    Report Error

    If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:

    Thank You For Helping Us!

    Your message has been sent to W3Schools.

    Top Tutorials

    Top References

    Top Examples

    Get Certified

    W3Schools is optimized for learning and training. Examples might be simplified to improve reading and learning. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. While using W3Schools, you agree to have read and accepted our terms of use, cookie and privacy policy.

    Источник

    Читайте также:  Php добавление значений массив