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<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{ 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{ 200px; height:50px;
background-color:#6FC;
text-align:center;
vertical-align:middle;
line-height:60px;}
.z2{ float:left;
40px; height:50px;
background-color:#F09;
color:#000;}
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<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; position:relative;">滚动效果</marquee></div>
<div><marquee direction="right" style="z-index:-5; position:relative;"><img src="1.jpg"></marquee></div>
<hr />
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<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>
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<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>
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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>*
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<div id="d5" style="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>
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<div id="n1" style="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="400px; height:400px; background-color:#6F0; margin:100px 100px 100px 100px; border:1px solid #0CF; box-shadow:0 0 50px #33FF00;">
<div style="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>
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<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>