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在語法上面多加一段
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></script>


讓整段變成
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.2.6/jquery.min.js"></script>
<script language="JavaScript" type="text/JavaScript">
//小
function s(){
$(".article-content").css("font-size","x-small");
}
//中
function m(){
$(".article-content").css("font-size","small");
}
//大
function l(){
$(".article-content").css("font-size","medium");
}
</script>