This example sets the left edge of the paragraph 20 px to the right of the left edge of the window:
这个举例会让段落放置在离窗口左边，并向右20px的地方：
p
{
position: absolute;
left: 20px
}

This example sets the left edge of the paragraph 20 px to the left of the left edge of the window:
这个举例会让段落放置在离窗口左边，并向左20px的地方：
p
{
position: absolute;
left: -20px
}