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<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>无标题文档</title><script>window.onload = function (){ var oBtn1 = document.getElementById('btn1'); var oBtn2 = document.getElementById('btn2'); var oBtn3 = document.getElementById('btn3'); var oBtn4 = document.getElementById('btn4'); var oP = document.getElementById('p1'); var num = 14; oBtn1.onclick = function (){ num -= 2; oP.style.fontSize = num + 'px'; // JS 不允许出现"-" // padding-top paddingTop // margin-left marginLeft }; oBtn2.onclick = function (){ // num = num + 2; num += 2; oP.style.fontSize = num + 'px'; // JS 不允许出现"-" }; oBtn3.onclick = function (){ // oP.class = 'red'; // class => className oP.className = 'red'; };oBtn4.onclick = function (){
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<input id="btn2" type="button" value="+" /> <input id="btn3" type="button" value="红" /> <input id="btn4" type="button" value="黄" /> <p id="p1" style="font-size:16px;">10月28日晚,中央纪委监察部官网发布消息,贵州省委常委、遵义市委书记廖少华因涉嫌严重违纪违法接受组织调查。3天后中组部 宣布对其免职。廖成为十八大后中纪委一连串"打虎"行动中第十一位落马的副省部级以上高官。</p></body>
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