文中字体要12、14、16号中选择:
<span class="zh">字号:<b class="change-font">12</b><b class="change-font">14</b><b class="change-font">16</b></span>
<style type="text/css"> .font_size{font-weight:bold;margin-right:5px;font-size:14px;} .change-font{margin-right:5px;} </style>
<script type="text/javascript"> window.addEvent('domready',function(){ var a = $('dx_wenzhang'); $$('.change-font').each(function(item){ item.addEvent('click',function(){ $$('.change-font').removeClass('font_size'); a.getElements('p').setStyles({'font-size':this.innerHTML+'px','text-indent':'1em','line-height':(parseInt(this.innerHTML)+12)+'px'}); this.addClass('font_size'); }) }) }) </script>
<div class="dx_wenzhang" id="dx_wenzhang"> <p>文章内容 </p> </div>