class="baidu_pl"> <class="tags" href="/tags/DIV.html" title=div>div id="article_content" class="article_content clearfix"> <class="tags" href="/tags/DIV.html" title=div>div id="content_views" class="htmledit_views"> 方法就是在子class="tags" href="/tags/DIV.html" title=div>div中加入一个特殊的class="tags" href="/tags/DIV.html" title=div>div,再设置其样式 <body> <class="tags" href="/tags/DIV.html" title=div>div class="father"> <class="tags" href="/tags/DIV.html" title=div>div class="son1">Box-1<class="tags" href="/tags/DIV.html" title=div>div> //son class="tags" href="/tags/DIV.html" title=div>div都是设置了float属性的 <class="tags" href="/tags/DIV.html" title=div>div class="son2">Box-2<class="tags" href="/tags/DIV.html" title=div>div> <class="tags" href="/tags/DIV.html" title=div>div class="son3">Box-3<br/> Box-3<br/> Box-3<br/> Box-3</class="tags" href="/tags/DIV.html" title=div>div> <class="tags" href="/tags/DIV.html" title=div>div class="clear"></class="tags" href="/tags/DIV.html" title=div>div> //特殊的那个非浮动的class="tags" href="/tags/DIV.html" title=div>div </class="tags" href="/tags/DIV.html" title=div>div> </body> //特殊的那个class="tags" href="/tags/DIV.html" title=div>div的css .father .clear{ margin:0; padding;0; border;0; clear:both; //左右清除环绕浮动盒子的效果 } //浮动class="tags" href="/tags/DIV.html" title=div>div的css .son1{ float:left; } son2,son3同上 class="tags" href="/tags/DIV.html" title=div>div> class="tags" href="/tags/DIV.html" title=div>div> <class="tags" href="/tags/DIV.html" title=div>div id="treeSkill">class="tags" href="/tags/DIV.html" title=div>div>