[转载][分享]span标签与div的区别及结合 - ASP技术论坛

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[转载][分享]span标签与div的区别及结合

解释1：
<span>在CSS定义中属于一个行内元素，而<div>是块级元素。
对于学过CSS的人来说一听就能明白。可对于新手来说不易理解，我主要对新手说通熟点吧!用容器这一词会更容易形象理解它们的存在与用途,行内元素相当一个小容器，而<div>相当于一个大容器，大容器当然可以放一个小容器了,<span>就是小容器,这样一说你也许会在脑海中有一个初步的印象了吧,如果我们想在大容器中装一些清水.但我也想在里装一些墨水怎么办?很简单,我们把小容器拿出来装上墨水然后放入大容器里的清水中不就成了吗.
我在举个简单的一个实际例子吧比如<div>abcdefg</div>我想用CSS定义c的样式因此我们就可以用到<span>了.<div>ab<span>c</span>defg</div>(此处省略样式代码)

解释2：
<span>本身没有任何属性，但正因为它没有任何属性，所以它可以做为添加属性的容器。

解释3：
HTML只是赋予内容的手段，大部分HTML标签都有其意义（标签p创建段落，h1标签创建标题等等）的，然而span和div标签似乎没有任何内容上的意义，听起来就像一个泡沫做成的锤子一样无用。但实际上，与CSS结合起来后，它们被用得十分广泛。

它们被用来组合一大块的HTML代码并赋予一定的信息，大部分用类属性class和标识属性id与元素联系起来，见CSS中级指南的类和id选择符。

span和div的不同之处在于span是内联的，用在一小块的内联HTML中，而div（想想division是什么意思）元素是块级的（简单地说，它等同于其前后有断行），用于组合一大块的代码。

<div id="scissors">
<p>This is <span class="paper">crazy</span></p>
</div>

在实践中，div，特别是span不应该滥用，尽管有其他相左的意见。比如，你要强调单词“crazy”和加粗类“paper”，可能会用这样的代码：

<div id="scissors">
<p>This is <strong class="paper">crazy</strong></p>
</div>

这是做法比再加一个span比较好。

对于类class和标识id没有线索？别担心，在CSS中级指南中会接触到它们。你所需要记住的是，span和div 是“无意义”的标签。

----------

看了上面的解释，自己琢磨了一下，大体上明白了，在以后的实践中在深入理解吧。

嗯，附上第一组css样式导航条代码，如下：

<html>
<head>
<style type="text/css">
body {
margin:0;
padding:0;
font: bold 11px/1.5em Verdana;
}

h2 {
font: bold 14px Verdana, Arial, Helvetica, sans-serif;
color: #000;
margin: 0px;
padding: 0px 0px 0px 15px;
}

/*- Menu Tabs--------------------------- */

#tabs {
float:left;
width:100%;
background:#BBD9EE;
font-size:93%;
line-height:normal;
}
#tabs ul {
margin:0;
padding:10px 10px 0 50px;
list-style:none;
}
#tabs li {
display:inline;
margin:0;
padding:0;
}
#tabs a {
float:left;
background:url("tableft.gif") no-repeat left top;
margin:0;
padding:0 0 0 4px;
text-decoration:none;
}
#tabs a span {
float:left;
display:block;
background:url("tabright.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#666;
}
/* Commented Backslash Hack hides rule from IE5-Mac \*/
#tabs a span {float:none;}
/* End IE5-Mac hack */
#tabs a:hover span {
color:#FF9834;
}
#tabs a:hover {
background-position:0% -42px;
}
#tabs a:hover span {
background-position:100% -42px;
}

</style>
</head>

<body>
<h2>Tab Menu</h2>
<div id="tabs">
<ul>
<li><a href="#" title="Link 1"><span>Link 1</span></a></li>
<li><a href="#" title="Link 2"><span>Link 2</span></a></li>
<li><a href="#" title="Link 3"><span>Link 3</span></a></li>
<li><a href="#" title="Longer Link Text"><span>Longer Link Text</span></a></li>
<li><a href="#" title="Link 5"><span>Link 5</span></a></li>
<li><a href="#" title="Link 6"><span>Link 6</span></a></li>
<li><a href="#" title="Link 7"><span>Link 7</span></a></li>
</ul>
</div>
<br /><br />
</body>

</html>

下面是几组样式的完整代码

HTML代码
<html>
<head>
<style type="text/css">
body {
margin:0;
padding:0;
font: bold 11px/1.5em Verdana;
}

h2 {
font: bold 14px Verdana, Arial, Helvetica, sans-serif;
color: #000;
margin: 0px;
padding: 0px 0px 0px 15px;
}

/*- Menu Tabs--------------------------- */

#tabs {
float:left;
width:100%;
background:#BBD9EE;
font-size:93%;
line-height:normal;
}
#tabs ul {
margin:0;
padding:10px 10px 0 50px;
list-style:none;
}
#tabs li {
display:inline;
margin:0;
padding:0;
}
#tabs a {
float:left;
background:url("ziyuan/tupian/CSSmenus/tableft.gif") no-repeat left top;
margin:0;
padding:0 0 0 4px;
text-decoration:none;
}
#tabs a span {
float:left;
display:block;
background:url("ziyuan/tupian/CSSmenus/tabright.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#666;
}
/* Commented Backslash Hack hides rule from IE5-Mac \*/
#tabs a span {float:none;}
/* End IE5-Mac hack */
#tabs a:hover span {
color:#FF9834;
}
#tabs a:hover {
background-position:0% -42px;
}
#tabs a:hover span {
background-position:100% -42px;
}

/*- Menu Tabs B--------------------------- */

#tabsB {
float:left;
width:100%;
background:#F4F4F4;
font-size:93%;
line-height:normal;
}
#tabsB ul {
margin:0;
padding:10px 10px 0 50px;
list-style:none;
}
#tabsB li {
display:inline;
margin:0;
padding:0;
}
#tabsB a {
float:left;
background:url("ziyuan/tupian/CSSmenus/tableftB.gif") no-repeat left top;
margin:0;
padding:0 0 0 4px;
text-decoration:none;
}
#tabsB a span {
float:left;
display:block;
background:url("ziyuan/tupian/CSSmenus/tabrightB.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#666;
}
/* Commented Backslash Hack hides rule from IE5-Mac \*/
#tabsB a span {float:none;}
/* End IE5-Mac hack */
#tabsB a:hover span {
color:#000;
}
#tabsB a:hover {
background-position:0% -42px;
}
#tabsB a:hover span {
background-position:100% -42px;
}

/*- Menu Tabs C--------------------------- */

#tabsC {
float:left;
width:100%;
background:#EDF7E7;
font-size:93%;
line-height:normal;
}
#tabsC ul {
margin:0;
padding:10px 10px 0 50px;
list-style:none;
}
#tabsC li {
display:inline;
margin:0;
padding:0;
}
#tabsC a {
float:left;
background:url("ziyuan/tupian/CSSmenus/tableftC.gif") no-repeat left top;
margin:0;
padding:0 0 0 4px;
text-decoration:none;
}
#tabsC a span {
float:left;
display:block;
background:url("ziyuan/tupian/CSSmenus/tabrightC.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#464E42;
}
/* Commented Backslash Hack hides rule from IE5-Mac \*/
#tabsC a span {float:none;}
/* End IE5-Mac hack */
#tabsC a:hover span {
color:#FFF;
}
#tabsC a:hover {
background-position:0% -42px;
}
#tabsC a:hover span {
background-position:100% -42px;
}

/*- Menu Tabs D--------------------------- */

#tabsD {
float:left;
width:100%;
background:#FCF3F8;
font-size:93%;
line-height:normal;
border-bottom:1px solid #F4B7D6;
}
#tabsD ul {
margin:0;
padding:10px 10px 0 50px;
list-style:none;
}
#tabsD li {
display:inline;
margin:0;
padding:0;
}
#tabsD a {
float:left;
background:url("ziyuan/tupian/CSSmenus/tableftD.gif") no-repeat left top;
margin:0;
padding:0 0 0 4px;
text-decoration:none;
}
#tabsD a span {
float:left;
display:block;
background:url("ziyuan/tupian/CSSmenus/tabrightD.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#C7377D;
}
/* Commented Backslash Hack hides rule from IE5-Mac \*/
#tabsD a span {float:none;}
/* End IE5-Mac hack */
#tabsD a:hover span {
color:#C7377D;
}
#tabsD a:hover {
background-position:0% -42px;
}
#tabsD a:hover span {
background-position:100% -42px;
}

/*- Menu Tabs E--------------------------- */

#tabsE {
float:left;
width:100%;
background:#000;
font-size:93%;
line-height:normal;

}
#tabsE ul {
margin:0;
padding:10px 10px 0 50px;
list-style:none;
}
#tabsE li {
display:inline;
margin:0;
padding:0;
}
#tabsE a {
float:left;
background:url("ziyuan/tupian/CSSmenus/tableftE.gif") no-repeat left top;
margin:0;
padding:0 0 0 4px;
text-decoration:none;
}
#tabsE a span {
float:left;
display:block;
background:url("ziyuan/tupian/CSSmenus/tabrightE.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#FFF;
}
/* Commented Backslash Hack hides rule from IE5-Mac \*/
#tabsE a span {float:none;}
/* End IE5-Mac hack */
#tabsE a:hover span {
color:#FFF;
}
#tabsE a:hover {
background-position:0% -42px;
}
#tabsE a:hover span {
background-position:100% -42px;
}

/*- Menu Tabs F--------------------------- */

#tabsF {
float:left;
width:100%;
background:#efefef;
font-size:93%;
line-height:normal;
border-bottom:1px solid #666;
}
#tabsF ul {
margin:0;
padding:10px 10px 0 50px;
list-style:none;
}
#tabsF li {
display:inline;
margin:0;
padding:0;
}
#tabsF a {
float:left;
background:url("ziyuan/tupian/CSSmenus/tableftF.gif") no-repeat left top;
margin:0;
padding:0 0 0 4px;
text-decoration:none;
}
#tabsF a span {
float:left;
display:block;
background:url("ziyuan/tupian/CSSmenus/tabrightF.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#666;
}
/* Commented Backslash Hack hides rule from IE5-Mac \*/
#tabsF a span {float:none;}
/* End IE5-Mac hack */
#tabsF a:hover span {
color:#FFF;
}
#tabsF a:hover {
background-position:0% -42px;
}
#tabsF a:hover span {
background-position:100% -42px;
}

/*- Menu Tabs G--------------------------- */

#tabsG {
float:left;
width:100%;
background:#666;
font-size:93%;
line-height:normal;
}
#tabsG ul {
margin:0;
padding:10px 10px 0 50px;
list-style:none;
}
#tabsG li {
display:inline;
margin:0;
padding:0;
}
#tabsG a {
float:left;
background:url("ziyuan/tupian/CSSmenus/tableftG.gif") no-repeat left top;
margin:0;
padding:0 0 0 4px;
text-decoration:none;
}
#tabsG a span {
float:left;
display:block;
background:url("ziyuan/tupian/CSSmenus/tabrightG.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#FFF;
}
/* Commented Backslash Hack hides rule from IE5-Mac \*/
#tabsG a span {float:none;}
/* End IE5-Mac hack */
#tabsG a:hover span {
color:#FFF;
}
#tabsG a:hover {
background-position:0% -42px;
}
#tabsG a:hover span {
background-position:100% -42px;
}

/*- Menu Tabs H--------------------------- */

#tabsH {
float:left;
width:100%;
background:#000;
font-size:93%;
line-height:normal;
}
#tabsH ul {
margin:0;
padding:10px 10px 0 50px;
list-style:none;
}
#tabsH li {
display:inline;
margin:0;
padding:0;
}
#tabsH a {
float:left;
background:url("ziyuan/tupian/CSSmenus/tableftH.gif") no-repeat left top;
margin:0;
padding:0 0 0 4px;
text-decoration:none;
}
#tabsH a span {
float:left;
display:block;
background:url("ziyuan/tupian/CSSmenus/tabrightH.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#FFF;
}
/* Commented Backslash Hack hides rule from IE5-Mac \*/
#tabsH a span {float:none;}
/* End IE5-Mac hack */
#tabsH a:hover span {
color:#FFF;
}
#tabsH a:hover {
background-position:0% -42px;
}
#tabsH a:hover span {
background-position:100% -42px;
}

/*- Menu Tabs I--------------------------- */

#tabsI {
float:left;
width:100%;
background:#EFF4FA;
font-size:93%;
line-height:normal;
border-bottom:1px solid #DD740B;
}
#tabsI ul {
margin:0;
padding:10px 10px 0 50px;
list-style:none;
}
#tabsI li {
display:inline;
margin:0;
padding:0;
}
#tabsI a {
float:left;
background:url("ziyuan/tupian/CSSmenus/tableftI.gif") no-repeat left top;
margin:0;
padding:0 0 0 5px;
text-decoration:none;
}
#tabsI a span {
float:left;
display:block;
background:url("ziyuan/tupian/CSSmenus/tabrightI.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#FFF;
}
/* Commented Backslash Hack hides rule from IE5-Mac \*/
#tabsI a span {float:none;}
/* End IE5-Mac hack */
#tabsI a:hover span {
color:#FFF;
}
#tabsI a:hover {
background-position:0% -42px;
}
#tabsI a:hover span {
background-position:100% -42px;
}

/*- Menu Tabs J--------------------------- */

#tabsJ {
float:left;
width:100%;
background:#F4F4F4;
font-size:93%;
line-height:normal;
border-bottom:1px solid #24618E;
}
#tabsJ ul {
margin:0;
padding:10px 10px 0 50px;
list-style:none;
}
#tabsJ li {
display:inline;
margin:0;
padding:0;
}
#tabsJ a {
float:left;
background:url("ziyuan/tupian/CSSmenus/tableftJ.gif") no-repeat left top;
margin:0;
padding:0 0 0 5px;
text-decoration:none;
}
#tabsJ a span {
float:left;
display:block;
background:url("ziyuan/tupian/CSSmenus/tabrightJ.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#24618E;
}
/* Commented Backslash Hack hides rule from IE5-Mac \*/
#tabsJ a span {float:none;}
/* End IE5-Mac hack */
#tabsJ a:hover span {
color:#FFF;
}
#tabsJ a:hover {
background-position:0% -42px;
}
#tabsJ a:hover span {
background-position:100% -42px;
}

/*- Menu Tabs K--------------------------- */

#tabsK {
float:left;
width:100%;
background:#E7E5E2;
font-size:93%;
line-height:normal;
border-bottom:1px solid #54545C;
}
#tabsK ul {
margin:0;
padding:10px 10px 0 50px;
list-style:none;
}
#tabsK li {
display:inline;
margin:0;
padding:0;
}
#tabsK a {
float:left;
background:url("ziyuan/tupian/CSSmenus/tableftK.gif") no-repeat left top;
margin:0;
padding:0 0 0 4px;
text-decoration:none;
}
#tabsK a span {
float:left;
display:block;
background:url("ziyuan/tupian/CSSmenus/tabrightK.gif") no-repeat right top;
padding:5px 15px 4px 6px;
color:#FFF;
}
/* Commented Backslash Hack hides rule from IE5-Mac \*/
#tabsK a span {float:none;}
/* End IE5-Mac hack */
#tabsK a:hover span {
color:#FFF;
background-position:100% -42px;
}
#tabsK a:hover {
background-position:0% -42px;
}
#tabsK a:hover span {
background-position:100% -42px;
}
</style>
</head>

<h2>Tab Menu B</h2>
<div id="tabsB">
<ul>
<li><a href="#" title="Link 1"><span>Link 1</span></a></li>
<li><a href="#" title="Link 2"><span>Link 2</span></a></li>
<li><a href="#" title="Link 3"><span>Link 3</span></a></li>
<li><a href="#" title="Longer Link Text"><span>Longer Link Text</span></a></li>
<li><a href="#" title="Link 5"><span>Link 5</span></a></li>
<li><a href="#" title="Link 6"><span>Link 6</span></a></li>
<li><a href="#" title="Link 7"><span>Link 7</span></a></li>
</ul>
</div>
<br /><br />

<h2>Tab Menu C</h2>
<div id="tabsC">
<ul>
<li><a href="#" title="Link 1"><span>Link 1</span></a></li>
<li><a href="#" title="Link 2"><span>Link 2</span></a></li>
<li><a href="#" title="Link 3"><span>Link 3</span></a></li>
<li><a href="#" title="Longer Link Text"><span>Longer Link Text</span></a></li>
<li><a href="#" title="Link 5"><span>Link 5</span></a></li>
<li><a href="#" title="Link 6"><span>Link 6</span></a></li>
<li><a href="#" title="Link 7"><span>Link 7</span></a></li>
</ul>
</div>
<br /><br />

<h2>Tab Menu D</h2>
<div id="tabsD">
<ul>
<li><a href="#" title="Link 1"><span>Link 1</span></a></li>
<li><a href="#" title="Link 2"><span>Link 2</span></a></li>
<li><a href="#" title="Link 3"><span>Link 3</span></a></li>
<li><a href="#" title="Longer Link Text"><span>Longer Link Text</span></a></li>
<li><a href="#" title="Link 5"><span>Link 5</span></a></li>
<li><a href="#" title="Link 6"><span>Link 6</span></a></li>
<li><a href="#" title="Link 7"><span>Link 7</span></a></li>
</ul>
</div>
<br /><br />

<h2>Tab Menu E</h2>
<div id="tabsE">
<ul>
<li><a href="#" title="Link 1"><span>Link 1</span></a></li>
<li><a href="#" title="Link 2"><span>Link 2</span></a></li>
<li><a href="#" title="Link 3"><span>Link 3</span></a></li>
<li><a href="#" title="Longer Link Text"><span>Longer Link Text</span></a></li>
<li><a href="#" title="Link 5"><span>Link 5</span></a></li>
<li><a href="#" title="Link 6"><span>Link 6</span></a></li>
<li><a href="#" title="Link 7"><span>Link 7</span></a></li>
</ul>
</div>
<br /><br />

<h2>Tab Menu F</h2>
<div id="tabsF">
<ul>
<li><a href="#" title="Link 1"><span>Link 1</span></a></li>
<li><a href="#" title="Link 2"><span>Link 2</span></a></li>
<li><a href="#" title="Link 3"><span>Link 3</span></a></li>
<li><a href="#" title="Longer Link Text"><span>Longer Link Text</span></a></li>
<li><a href="#" title="Link 5"><span>Link 5</span></a></li>
<li><a href="#" title="Link 6"><span>Link 6</span></a></li>
<li><a href="#" title="Link 7"><span>Link 7</span></a></li>
</ul>
</div>
<br /><br />

<h2>Tab Menu G</h2>
<div id="tabsG">
<ul>
<li><a href="#" title="Link 1"><span>Link 1</span></a></li>
<li><a href="#" title="Link 2"><span>Link 2</span></a></li>
<li><a href="#" title="Link 3"><span>Link 3</span></a></li>
<li><a href="#" title="Longer Link Text"><span>Longer Link Text</span></a></li>
<li><a href="#" title="Link 5"><span>Link 5</span></a></li>
<li><a href="#" title="Link 6"><span>Link 6</span></a></li>
<li><a href="#" title="Link 7"><span>Link 7</span></a></li>
</ul>
</div>
<br /><br />

<h2>Tab Menu H</h2>
<div id="tabsH">
<ul>
<li><a href="#" title="Link 1"><span>Link 1</span></a></li>
<li><a href="#" title="Link 2"><span>Link 2</span></a></li>
<li><a href="#" title="Link 3"><span>Link 3</span></a></li>
<li><a href="#" title="Longer Link Text"><span>Longer Link Text</span></a></li>
<li><a href="#" title="Link 5"><span>Link 5</span></a></li>
<li><a href="#" title="Link 6"><span>Link 6</span></a></li>
<li><a href="#" title="Link 7"><span>Link 7</span></a></li>
</ul>
</div>
<br /><br />

<h2>Tab Menu I</h2>
<div id="tabsI">
<ul>
<li><a href="#" title="Link 1"><span>Link 1</span></a></li>
<li><a href="#" title="Link 2"><span>Link 2</span></a></li>
<li><a href="#" title="Link 3"><span>Link 3</span></a></li>
<li><a href="#" title="Longer Link Text"><span>Longer Link Text</span></a></li>
<li><a href="#" title="Link 5"><span>Link 5</span></a></li>
<li><a href="#" title="Link 6"><span>Link 6</span></a></li>
<li><a href="#" title="Link 7"><span>Link 7</span></a></li>
</ul>
</div>
<br /><br />

<h2>Tab Menu J</h2>
<div id="tabsJ">
<ul>
<li><a href="#" title="Link 1"><span>Link 1</span></a></li>
<li><a href="#" title="Link 2"><span>Link 2</span></a></li>
<li><a href="#" title="Link 3"><span>Link 3</span></a></li>
<li><a href="#" title="Longer Link Text"><span>Longer Link Text</span></a></li>
<li><a href="#" title="Link 5"><span>Link 5</span></a></li>
<li><a href="#" title="Link 6"><span>Link 6</span></a></li>
<li><a href="#" title="Link 7"><span>Link 7</span></a></li>
</ul>
</div>
<br /><br />

<h2>Tab Menu K</h2>
<div id="tabsK">
<ul>
<li><a href="#" title="Link 1"><span>Link 1</span></a></li>
<li><a href="#" title="Link 2"><span>Link 2</span></a></li>
<li><a href="#" title="Link 3"><span>Link 3</span></a></li>
<li><a href="#" title="Longer Link Text"><span>Longer Link Text</span></a></li>
<li><a href="#" title="Link 5"><span>Link 5</span></a></li>
<li><a href="#" title="Link 6"><span>Link 6</span></a></li>
<li><a href="#" title="Link 7"><span>Link 7</span></a></li>
</ul>
</div>

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