Cs中的相对定位和绝对定位问题(菜鸟问题)_html/css

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Cs中的相对定位和绝对定位问题(菜鸟问题)_html/css_WEB-ITnose

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Jun 21, 2016 am 09:32 AM

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>无标题文档</title></head><style type="text/css">.parent{		width:700;	height:100;	top:5px;	left:5px;	position:relative;	background-color:#366} #duanlu{	text-align:right;	right:10px;	bottom:10pX;	position:absolute;	}</style><body><div class="parent"><strong id="duanlu">sdfsddsd</strong></div></body></html>

我这样写为什么页面上没有任何显示了呢.... 我是在看>这本书的时候有一小段这样的代码... 求解释.....

回复讨论(解决方案)

.parent
{

    width:700 px;
    height:100 px;
    top:5px;
    left:5px;
    position:relative;
    background-color:#366}

#duanlu
{
    text-align:right;
    right:10px;
    bottom:10pX;
    position:absolute;
    }

注意单位么有写。

.parent
{

    width:700px;
    height:100px;
    top:5px;
    left:5px;
    position:relative;
    background-color:#366}

#duanlu
{
    text-align:right;
    right:10px;
    bott……
++

相对定位（relative），绝对定位（absolute）简单说下。
当父级设置了相对定位，那他里面的元素如果设置了绝对定位，那么这个定位坐标是应离他最近的一个设置了相对定位的父级去坐参考，反之如果这个元素所有的父级都没有设置成相对定位，那就是以默认的body为参考，即整个窗口了。

.parent
{

  width:700px;
  height:100px;
  top:5px;
  left:5px;
  position:relative;
  background-color:#366}

#duanlu
{
  text-align:right;
  right:10px;
  bottom:10pX;
  position……

dui

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