Feb 20, 2012 CSS3 animations allow you to alter the values of CSS properties over time. They’re now supported in Firefox 5+, Chrome, Safari 4+, iOS, Android 4+, and the upcoming IE10, therefore, using them in real production websites is possible. One of the cool things you can do with them is. How to Change the Background Colour of a Web Page in CSS (HTML/CSS) by Christopher Heng, thesitewizard.com I was asked by a visitor how he could change the background colour ('color' if you use a different variant of English) of a web page. To change the foreground and background colors of text that the Console window displays, use the SetConsoleTextAttribute Win32 application programming interface (API) function. This function sets the attributes of the characters that are written to the screen buffer. Here is how to change the font color of text inside paragraph tags using your external style sheet. Color values can be expressed as color keywords, RGB color numbers, or hexadecimal color numbers. Place the color property in the style. Then add your color value after the property.
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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
CSS background-color
The
background-color
property specifies the background color of an element.Example
The background color of a page is set like this:
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.
Example
Here, the <h1>, <p>, and <div> elements will have different background colors:
h1 {
background-color: green;
}
div {
background-color: lightblue;
}
p {
background-color: yellow;
}
Try it Yourself »background-color: green;
}
div {
background-color: lightblue;
}
p {
background-color: yellow;
}
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
The background image for a page can be set like this:
Try it Yourself »Example
This example shows a bad combination of text and background image. The text is hardly readable:
Try it Yourself »Note: When using a background image, use an image that does not disturb the text.
CSS background-repeat
By default, the
background-image
property repeats an image both horizontally and vertically.Change Window Background Color Css Javascript
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 »background-image: url('gradient_bg.png');
}
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 »background-image: url('gradient_bg.png');
background-repeat: repeat-x;
}
Tip: To repeat an image vertically, set
background-repeat: repeat-y;
CSS background-repeat: no-repeat
Showing the background image only once is also specified by the
background-repeat
property:Example
Show the background image only once:
body {
background-image: url('img_tree.png');
background-repeat: no-repeat;
}
Try it Yourself »background-image: url('img_tree.png');
background-repeat: no-repeat;
}
In the example above, the background image is placed 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.
CSS background-position
The
background-position
property is used to specify the position of the background image.Example
Position the background image in the top-right corner:
body {
background-image: url('img_tree.png');
background-repeat: no-repeat;
background-position: right top;
}
Try it Yourself »background-image: url('img_tree.png');
background-repeat: no-repeat;
background-position: right top;
}
CSS background-attachment
The
background-attachment
property specifies whether the background image should scroll or be fixed (will not scroll with the rest of the page):Example
Specify that the background image should be fixed:
body {
background-image: url('img_tree.png');
background-repeat: no-repeat;
background-position: right top;
background-attachment: fixed;
}
Try it Yourself »background-image: url('img_tree.png');
background-repeat: no-repeat;
background-position: right top;
background-attachment: fixed;
}
Example
Specify that the background image should scroll with the rest of the page:
body {
background-image: url('img_tree.png');
background-repeat: no-repeat;
background-position: right top;
background-attachment: scroll;
}
Try it Yourself »background-image: url('img_tree.png');
background-repeat: no-repeat;
background-position: right top;
background-attachment: scroll;
}
CSS background - Shorthand property
Change Window Background Color Css Bootstrap
To shorten the code, it is also possible to specify all the background properties in one single property. This is called a shorthand property.
Change Window Background Color C++
The shorthand property for background is
background
.Example
Use the shorthand property to set all the background properties in one declaration:
body {
background: #ffffff url('img_tree.png') no-repeat right top;
}
Try it Yourself »background: #ffffff url('img_tree.png') no-repeat right top;
}
Free download counter strike 1.6 full version. When using the shorthand property the order of the property values is:
background-color
background-image
background-repeat
background-attachment
background-position
Css Colors
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-clip | Specifies the painting area of the background |
background-color | Sets the background color of an element |
background-image | Sets the background image for an element |
background-origin | Specifies where the background image(s) is/are positioned |
background-position | Sets the starting position of a background image |
background-repeat | Sets how a background image will be repeated |
background-size | Specifies the size of the background image(s) |