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Css Background

 

Example

The CSS background properties are used to define the background effects for elements.

CSS background properties:

  • background-color
  • background-image
  • background-repeat
  • background-attachment
  • background-position

Background Color

 

The background-color property specifies the background color of an element.

The background color of a page is set like this:


Example

body {
    background-color: lightblue;
}
Try it Yourself

With CSS, a color is most often specified by:

  • a valid color name - like "red"
  • a HEX value - like "#ff0000"
  • an RGB value - like "rgb(255,0,0)"

  • Look at CSS Color Values for a complete list of possible color values.

    In the example below, the <h1>, <p>, and <div> elements have different background colors:


    Example

    h1 {
        background-color: green;
    }

    div {
        background-color: lightblue;
    }

    p {
        background-color: yellow;
    }
    Try it Yourself

    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.

    The background image for a page can be set like this:


    Example

    body {
        background-image: url("paper.gif");
    }
    Try it Yourself

    Below is an example of a bad combination of text and background image. The text is hardly readable:


     

    Example

    body {
        background-image: url("bgdesert.jpg");
    }
    Try it Yourself

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

    Background Image - Repeat Horizontally or Vertically


    By default, the background-image property repeats an image both horizontally and vertically.

    Some images should be repeated only horizontally or vertically, or they will look strange, like this:


    Example

    body {
       background-image: url("gradient_bg.png");
    }
    Try it Yourself

    If the image above is repeated only horizontally (background-repeat: repeat-x;), the background will look better:


     

    Example

    body{
       background-image: url("gradient_bg.png");
       background-repeat: repeat-x;
    }
    Try it Yourself

    Tip: To repeat an image vertically, set background-repeat: repeat-y;

    Background Image - Set position and no-repeat

     

    Showing the background image only once is also specified by the background-repeat property:

    Example

    body{
       background-image: url("img_tree.png");
       background-repeat: no-repeat;
    }
    Try it Yourself

    In the example above, the background image is shown in the same place as the text. We want to change the position of the image, so that it does not disturb the text too much.

    The position of the image is specified by the background-position property:


     

    Example

    body {
       background-image: url("img_tree.png");
       background-repeat: no-repeat;
       background-position: right top;
    }
    Try it Yourself

    Background Image - Fixed position

     

    To specify that the background image should be fixed (will not scroll with the rest of the page), use the background-attachment property:

    Example

    body {
       background-image: url("img_tree.png");
       background-repeat: no-repeat;
       background-position: right top;
        background-attachment: fixed;
    }
    Try it Yourself

    Background - Shorthand property

     

    To shorten the code, it is also possible to specify all the background properties in one single property. This is called a shorthand property.

    The shorthand property for background is background:

    Example

    body {
        background: #ffffff url("img_tree.png") no-repeat right top;
    }
    Try it Yourself

    When using the shorthand property the order of the property values is:

    It does not matter if one of the property values is missing, as long as the other ones are in this order.


    Test Yourself with Exercises

     

    All CSS Background Properties


     

    Property Description
    background Sets all the background properties in one declaration
    background-attachment Sets whether a background image is fixed or scrolls with the rest of the page
    background-color Sets the background color of an element
    background-image Sets the background image for an element
    background-position Sets the starting position of a background image
    background-repeat Sets how a background image will be repeated