CSS background-position Property

最新推荐文章于 2025-12-15 14:43:56 发布

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本文详细介绍了CSS中的background-position属性，该属性用于设置背景图片的起始位置。文章解释了属性的使用方法，包括如何通过关键词、百分比及具体单位来指定位置，并提供了具体的示例。

The background-position property sets the starting position of a background image.

Inherited: No

CSS properties can also be dynamically changed with a JavaScript.

Scripting Syntax: object.style.backgroundPosition="bottom center"

In our HTML DOM tutorial you can find more details about the backgroundPosition property.

In our HTML DOM tutorial you can also find a full Style Object Reference.

body
{
background-image: url(stars.gif);
background-repeat: no-repeat;
background-position: top left
}

body
{
background-image: url(stars.gif);
background-repeat: no-repeat;
background-position: 0% 0%
}

Value	Description
top left top center top right center left center center center right bottom left bottom center bottom right	If you only specify one keyword, the second value will be "center". Default value: 0% 0%
x% y%	The first value is the horizontal position and the second value is the vertical. The top left corner is 0% 0%. The right bottom corner is 100% 100%. If you only specify one value, the other value will be 50%.
xpos ypos	The first value is the horizontal position and the second value is the vertical. The top left corner is 0 0. Units can be pixels (0px 0px) or any other CSS units. If you only specify one value, the other value will be 50%. You can mix % and positions.