<!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>
<style type="text/css">
/**代表选取所有元素*/
#d6{ font-size:14px;
????color:#000;
????font-family:Georgia, "Times New Roman", Times, serif;
????font-weight:bold;
}
#d div{color:#3F0;}
span,div{ text-decoration:underline}
div.c1{ text-align:center}
#p1{ width:300px;
height:300px;
background-color:#303;
position:fixed;
right:0px;
bottom:0px;
opacity:0.5;-moz-opacity:0.5;filter:alpha(opacity=50);
box-shadow:100 100 100px #000000;}
.l2{ float:right;}
#z1{ width:200px; height:50px;
background-color:#6FC;
text-align:center;
vertical-align:middle;
line-height:60px;}
.z2{ float:left;
width:40px; height:50px;
background-color:#F09;
color:#000;}
</style>
???
</head>
<body>
???<div id="d" style="border:5px solid #F69;">一代二代三代ASDE
???<div>后代一</div>
???????<div>后代二</div>
???</div>
???
<div><marquee direction="left" style="z-index:+10;">滚动效果</marquee></div>
<div><marquee direction="right" style="z-index:-5"><img src="1.jpg"></marquee></div>
???
???<hr />
???<span>
???<mark>苹果</mark><!--关键字效果，特殊处理，默认黄色，后期用样式来改-->公司发布了IPONE7，耳机遭到了吐槽
???</span>
???<hr />
???
???<div id="d8" style="font-size:20px">准确控制</div>
???????
<div class="c1">第一个</div>
???????<div class="c1">第二个</div>
???????<div class="c1">第三个</div>
???????<div class="c1">第四个</div>
???????<div class="c1">第五个</div>
<div class="c1">第六个</div>
???????
???????<span>这是SPAN1</span>
???????<span>这是SPAN1</span>
???????<span>这是SPAN1</span>
???????<span>这是SPAN1</span>
???????<span>这是SPAN1</span>
???????<span>这是SPAN1</span>
???????<div>
???????样式的格式：
???????样式名：样式的值
???????多个样式之间用分号分隔
???????
???????选择器的优先级：
???????标签选择器（span div）>*（所有）
???????clasa选择器>标签选择器
???????id选择器>class选择器
???????
???????ID>class>标签>*
????</div>
<div id="d5" style="width:300px; height:200px; background-color:#6F9; position:absolute; left:500px; top:80px; z-index:-2;"><b>测试文字</b></div>
???<div id="d6" style="text-decoration:none; font-size:36px;">你好
???<a style="text-decoration:none" href="1.jpg" >超链接</a>
???</div>
???<br>
???
???<div id="n1" style="width:600px; height:600px; background-color:#000; border:5px solid #609; color:#FFF; box-shadow:0 0 50px #000000;">手机电脑第胜女的代价四十开导开导
???<div style="width:400px; height:400px; background-color:#6F0; margin:100px 100px 100px 100px; border:1px solid #0CF; box-shadow:0 0 50px #33FF00;">
???????<div style="width:0px; height:0px;
????????????margin:100px 100px 100px 100px;
????????????????????????border-top:100px solid #0CF;
????????????????????????border-bottom:100px solid #6FF;
????????????????????????border-left:100px solid #F30;
????????????????????????border-right:100px solid #0FF;
????????????????????????box-shadow:0 0 50px #FFFF00;">
???????????</div>
???????</div>
???</div>
???
???
???<ul style="list-style:outside;">
???<li>看起来还好哈哈</li>
???????<li>看起来还好哈哈</li>
???????<li>看起来还好哈哈</li>
???????<li>看起来还好哈哈</li>
???</ul>
???
???<div id="p1"></div>
???
???<div id="l1">
???<div class="l2"><img src="yun.jpg" height="200px"; width="200px";></div>
???<div class="l2"><img src="yun.jpg" height="200px"; width="200px";></div>
???<div class="l2"><img src="yun.jpg" height="200px"; width="200px";></div>
???<div class="l2"><img src="yun.jpg" height="200px"; width="200px";></div>
???????<div class="l2"><img src="yun.jpg" height="200px"; width="200px";></div>
???????<div class="l2"><img src="yun.jpg" height="200px"; width="200px";></div>
???????<div class="l2"><img src="yun.jpg" height="200px"; width="200px";></div>
???????<div class="l2"><img src="yun.jpg" height="200px"; width="200px";></div>
???????<div class="l2"><img src="yun.jpg" height="200px"; width="200px";></div>
???????<div class="l2"><img src="yun.jpg" height="200px"; width="200px";></div>
???</div>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
???<br>
?
???
<div id="z1">
??<div class="z2">一</div>
???<div class="z2">二</div>
???<div class="z2">三</div>
??<div class="z2">四</div>
???<div class="z2">五</div>
??</div>
</body>
</html>
学习笔记之CSS样式（选择器背景字体边框绝/相对、固定位置and分层流等）
原文地址：http://www.cnblogs.com/ziyanxiaozhu/p/7648396.html