控制文字大小

/*设置字体大小*/
function setsize(size){
var getsize=size;
document.getElementById("article-content").style.fontSize=getsize+'px'

}

HTML中调用
<div class="article-guild">[字号:
                <a href="javascript:setsize('12')">小</a>
                <a href="javascript:setsize('14')">中</a>
                <a href="javascript:setsize('18')">大</a>
</div>
<div id="article-content">123</div>