## columns 屬性
### 定義和用法
columns 屬性是一個簡寫屬性,用于設置列寬和列數。
JavaScript 語法:object.style.columns="100px 3"
## 語法
~~~
columns: column-width column-count;
~~~
| 值 | 描述 |
| --- | --- |
| *column-width* | 列的寬度。 |
| *column-count* | 列數。 |
## 實例1
[Column-count](https://www.w3cschool.cn/tryrun/showhtml/trycss3_column-count)
把 div 元素中的文本劃分為三列。
[Column-gap](https://www.w3cschool.cn/tryrun/showhtml/trycss3_column-gap)
將 div 元素中的文本分為三列,并列間 30 像素的間隔。
[Column-rule](https://www.w3cschool.cn/tryrun/showhtml/trycss3_column-rule)
規定列之間的寬度、樣式和顏色。
## 實例2--規定列的寬度和列數:
```
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool教程(w3cschool.cn)</title>
<style>
.newspaper
{
columns:100px 3;
-webkit-columns:100px 3; /* Safari and Chrome */
-moz-columns:100px 3; /* Firefox */
}
</style>
</head>
<body>
<p><strong>注意:</strong> columns屬性不支持 Internet Explorer 9以及更早版本的瀏覽器.</p>
<div class="newspaper">
Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat.
Duis autem vel eum iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum zzril delenit augue duis dolore te feugait nulla facilisi. Nam liber tempor cum soluta nobis eleifend option congue nihil imperdiet doming id quod mazim placerat facer possim assum. Typi non habent claritatem insitam; est usus legentis in iis qui facit eorum claritatem. Investigationes demonstraverunt lectores legere me lius quod ii legunt saepius.
</div>
</body>
</html>
```
- CSS常用樣式控制
- background--背景
- Text--文本
- CSS屬性
- align-*
- animation-*
- appearance
- backface-visibility
- background
- background-attachment
- background-blend-mode
- background-clip
- background-color
- background-image
- background-origin
- background-position
- background-repeat
- background-size
- border
- border-bottom
- border-bottom-color
- border-bottom-left-radius
- border-bottom-right-radius
- border-bottom-style
- border-bottom-width
- border-collapse
- border-color
- border-image
- border-image-outset
- border-image-repeat
- border-image-source
- border-image-width
- Border-left
- border-left-color
- border-left-style
- border-left-width
- border-image-slice
- border-radius
- border-right
- border-right-color
- border-right-style
- border-right-width
- border-spacing
- border-style
- border-top
- border-top-color
- border-top-left-radius
- border-top-right-radius
- border-top-style
- border-top-width
- border-width
- bottom
- box-shadow
- box-sizing
- caption-side
- clear
- clip
- color
- column-count
- column-gap
- column-rule
- column-rule-color
- column-rule-style
- column-rule-width
- column-span
- column-width
- columns
- content
- counter-increment
- counter-reset
- cursor
- direction
- display
- Empty-cells
- filter(濾鏡)
- CSS 偽元素選擇器
- :active 選擇器
- :after 選擇器
- :before 選擇器
- :checked 選擇器
- :disabled 選擇器
- :empty 選擇器
- :enabled 選擇器
- :first-child 偽元素
- :first-letter 偽元素
- :first-line 偽元素
- :first-of-type 選擇器
- :focus 選擇器
- :hover 選擇器