The CSS positioning properties allows you to position an element.
使用CSS定位屬性可以讓你定義元素的位置

如何讓一元素相對于原始位置進(jìn)行相對定位 Position:relative
This example demonstrates how to position an element relative to its normal position.
Examples 實例：


如何使用絕對值來定位元素 Position:absolute
This example demonstrates how to position an element using an absolute value.
Examples 實例：


何如設(shè)置元素的外形，并以這個外形顯示 Set the shape of an element
This example demonstrates how to set the shape of an element. The element is clipped into this shape, and displayed.
Examples 實例：


Overflow
當(dāng)元素的內(nèi)容超過了指定的范圍，overflow屬性就可以指定應(yīng)該以怎樣的形式來處理
This example demonstrates how to set the overflow property to specify what should happen when an element's content is too big to fit in a specified area.
Examples 實例：


如何垂直對齊一張圖片 Vertical align an image
This example demonstrates how to vertical align an image in a text.
Examples 實例：


Z-index
Z-index可以讓一元素放到另一元素的"后面"
Z-index can be used to place an element "behind" another element.
Examples 實例：


Z-index
上面例子中的元素現(xiàn)在Z-index值已經(jīng)發(fā)生的變化
The elements in the example above have now changed their Z-index.
Examples 實例：


The CSS positioning properties allow you to specify the left, right, top, and bottom position of an element. It also allows you to set the shape of an element, place an element behind another, and to specify what should happen when an element's content is too big to fit in a specified area.
CSS定位屬性答應(yīng)你指定元素上下左右的位置。也答應(yīng)你設(shè)置元素的外形，將元素安置在另一個元素的后面，并指定當(dāng)元素內(nèi)容超出范圍后應(yīng)該怎么做。