# Background Properties
### 属性列表
- [background-origin](#)
- [background-clip](#)
- [background-size](#)
- [multiple backgrounds](#)
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- CSS3 Properties
- 边框(Border)
- Border-color
- Border-image
- Border-radius
- box-shadow
- 背景(Background)
- background-origin
- background-clip
- Background-size
- Multiple backgrounds
- 颜色(Color)
- HSL colors
- HSLA colors
- opacity
- RGBA colors
- 文本(Text effects)
- text-shadow
- text-overflow
- word-wrap
- 用户界面(User-interface)
- box-sizing
- resize
- outline
- outline-width
- outline-style
- outline-offset
- outline-color
- nav-index
- nav-up
- nav-right
- nav-down
- nav-left
- 基础盒模型(Basic box model)
- overflow
- overflow-x
- overflow-y
- 内容(Generated Content)
- content
- 其它模块(Other modules)
- media queries
- Speech
- columns
- column-width
- column-span
- column-rule
- column-rule-color
- column-rule-width
- column-rule-style
- column-gap
- column-fill
- column-count
- column-break-before
- column-break-after
- @font-face
- 选择器(selectors)
- 子串匹配的属性选择符 E[att^="val"]
- 子串匹配的属性选择符 E[att$="val"]
- 子串匹配的属性选择符 E[att*="val"]
- 结构性伪类 E:root
- 结构性伪类 E:nth-child(n)
- 结构性伪类 E:nth-last-child(n)
- 结构性伪类 E:nth-of-type(n)
- 结构性伪类 E:nth-last-of-type(n)
- 结构性伪类 E:last-child
- 结构性伪类 E:first-of-type
- 结构性伪类 E:only-child
- 结构性伪类 E:only-of-type
- 结构性伪类 E:empty
- UI元素状态伪类 E:checked
- UI元素状态伪类 E:enabled
- UI元素状态伪类 E:disabled
- UI元素状态伪类 E::selection
- 否定伪类 E:not(s)
- 目标伪类 E:target
- 通用兄弟元素选择器 E ~ F