<html><head> <style type="text/css"> body,div,ul,li{ margin:0px; padding:0px; } body{background-image:url(pic/clouds.gif); background-repeat:no-repeat; background-position:center top;} .navigation{ width:1000px;height:54px; background:#383838;margin:20px auto 0px;} .navigation ul{width:1000px;height:54px;} .navigation ul li{list-style:none; float:left; text-align:center; height:54px; line-height:54px; } .navigation ul li a{ text-decoration:none; display:block;padding:0px 5px; color:#ffffff;float:left;font-size:12px;width:76px;font-family:"宋体"; } .navigation ul li a:hover{background:url("pic/navHoverBg.png");} .centerpic{margin:10px 0px;/*不知为何auto不能居中,只能用下面的居中*/ text-align:center;} .content{ width:1000px;height:600px;margin:10px auto 0px;background:#cccccc; } .left{ width:680px; height:600px;float:left; } .left img{ margin:10px 0 0 10px;} .left h2{ color:#910800;margin-left:10px;} .left p{margin-left:10px;text-indent:2em; } .right{width:320px;height:600px;float:left;} .title{ width:299px; height:32px; margin-left:10px; margin-top:10px; background-image:url("pic/title.jpg"); background-repeat:no-repeat; color:#ffffff; padding-left:20px; line-height:32px; } .right ul{ margin-left:30px; margin-top:10px; list-style-image:url("pic/dot.gif");} .right ul li{height:25px; font-size:16px;} .bottom{ width:1000px;height:54px; background:#383838;margin:10px auto 10px;} </style></head><body><div><!--导航--> <div class="navigation"> <ul> <li><img src="/static/imghwm/default1.png" data-src="pic/logo.png" class="lazy" / alt="IE与firefox居中兼容问题_html/css_WEB-ITnose" ></li> <li><a href="">首 页</a></li> <li><a href="">培训课程</a></li> <li><a href="">优秀学员</a></li> <li><a href="">课程疑问</a></li> <li><a href="">职业生涯</a></li> <li><a href="">学员社区</a></li> <li><a href="">官方博客</a></li> <li><a href="">学院地址</a></li> </ul> </div> <!--中部图--> <div class="centerpic"> <img src="/static/imghwm/default1.png" data-src="pic/banner.jpg" class="lazy" / alt="IE与firefox居中兼容问题_html/css_WEB-ITnose" > </div> <div class="content"> <div class="left"> <img src="/static/imghwm/default1.png" data-src="pic/articleBanner.jpg" class="lazy" / alt="IE与firefox居中兼容问题_html/css_WEB-ITnose" > <h2 id="好找工作吗">好找工作吗?</h2> <p>我们换一种方法表达上面的意思,因为红色方块的“左侧浮动”,才导致蓝色方块上移至红色方块的尾后;在上个例子中,为了达到浏览器兼容性,我们在红色、蓝色方块CSS代码中分别加了“float:left;”,这样IE和FF中显示效果一样。</p> <p>我们换一种方法表达上面的意思,因为红色方块的“左侧浮动”,才导致蓝色方块上移至红色方块的尾后;在上个例子中,为了达到浏览器兼容性,我们在红色、蓝色方块CSS代码中分别加了“float:left;”,这样IE和FF中显示效果一样,如果此时我们还想放一个宽度400像素,高度100像素的绿色方块,并让其处于第二行,希望效果如下图:</p> </div> <div class="right"> <div class="title">职业生涯</div> <ul> <li>我们换一种方法</li> <li>我们换一种方法</li> <li>我们换一种方法</li> <li>我们换一种方法</li> <li>我们换一种方法</li> <li>我们换一种方法</li> </ul> <div class="title">职业生涯</div> <ul> <li>我们换一种方法</li> <li>我们换一种方法</li> <li>我们换一种方法</li> <li>我们换一种方法</li> <li>我们换一种方法</li> <li>我们换一种方法</li> </ul> </div> </div> <div class="bottom"> </div></div></body></html>
IE8显示
firefox显示
为什么Ie显示不居中,菜鸟求解答啊!
回复讨论(解决方案)
最前面加
nbsp;html>
就可以了,默认的dtd不一样
最前面加
nbsp;html>
就可以了,默认的dtd不一样
还真是,以前都加的,这次忘加了。多谢

HTMLtagsdefinethestructureofawebpage,whileattributesaddfunctionalityanddetails.1)Tagslike,,andoutlinethecontent'splacement.2)Attributessuchassrc,class,andstyleenhancetagsbyspecifyingimagesources,styling,andmore,improvingfunctionalityandappearance.

The future of HTML will develop in a more semantic, functional and modular direction. 1) Semanticization will make the tag describe the content more clearly, improving SEO and barrier-free access. 2) Functionalization will introduce new elements and attributes to meet user needs. 3) Modularity will support component development and improve code reusability.

HTMLattributesarecrucialinwebdevelopmentforcontrollingbehavior,appearance,andfunctionality.Theyenhanceinteractivity,accessibility,andSEO.Forexample,thesrcattributeintagsimpactsSEO,whileonclickintagsaddsinteractivity.Touseattributeseffectively:1)Usese

The alt attribute is an important part of the tag in HTML and is used to provide alternative text for images. 1. When the image cannot be loaded, the text in the alt attribute will be displayed to improve the user experience. 2. Screen readers use the alt attribute to help visually impaired users understand the content of the picture. 3. Search engines index text in the alt attribute to improve the SEO ranking of web pages.

The roles of HTML, CSS and JavaScript in web development are: 1. HTML is used to build web page structure; 2. CSS is used to beautify the appearance of web pages; 3. JavaScript is used to achieve dynamic interaction. Through tags, styles and scripts, these three together build the core functions of modern web pages.

Setting the lang attributes of a tag is a key step in optimizing web accessibility and SEO. 1) Set the lang attribute in the tag, such as. 2) In multilingual content, set lang attributes for different language parts, such as. 3) Use language codes that comply with ISO639-1 standards, such as "en", "fr", "zh", etc. Correctly setting the lang attribute can improve the accessibility of web pages and search engine rankings.

HTMLattributesareessentialforenhancingwebelements'functionalityandappearance.Theyaddinformationtodefinebehavior,appearance,andinteraction,makingwebsitesinteractive,responsive,andvisuallyappealing.Attributeslikesrc,href,class,type,anddisabledtransform

TocreatealistinHTML,useforunorderedlistsandfororderedlists:1)Forunorderedlists,wrapitemsinanduseforeachitem,renderingasabulletedlist.2)Fororderedlists,useandfornumberedlists,customizablewiththetypeattributefordifferentnumberingstyles.


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