What does css background style include?

css background style includes: background color "background-color", background image "background-image", background positioning "background-position", background repetition "background-repeat", "background", etc.

The operating environment of this tutorial: Windows 7 system, CSS3 version, Dell G3 computer.

1. background-color sets the background color of the element.

background-color：颜色/transparent

Description:

• transparent is fully transparent

• color value (color name/RGB/16 Base)

The background area includes content, padding and border, and does not include margin

2, background-image sets the background image of the element.

background-image：url(图片地址)/none

Note:

• The url address can be a relative address or an absolute address

• Background of the element Occupies the full size of the element, including padding and borders, but not margins
  

• By default, the background image is positioned in the upper-left corner of the element and is positioned horizontally and vertically Repeat in the direction.
  

• When the background image and background color are set simultaneously, the background image will overwrite the background color

3. background-position sets the starting position of the background image, background positioning

background-position ：百分比/px/top/right/bottom/left/center

4, background-attachment background Whether the image is fixed or scrolls with the rest of the page

background-attachment：scroll/fixed

• scroll: Default, scrolls with the image

• fixed: The background image does not move when the rest of the page scrolls

5. background-repeat sets whether and how the background image repeats

background-repeat：repeat/no-repeat/repeat-x/repeat-y 

//分别是重复、不重复、水平重复、不重复

6. The background abbreviation attribute is used to set the background attribute in a statement.

background：[background-color] [background-image] [background-repeat] [background-attachment] [background-position]

Note: Each value is separated by spaces, in no particular order

(Learning video sharing: css video tutorial)

The above is the detailed content of What does css background style include?. For more information, please follow other related articles on the PHP Chinese website!