JS修改CSS的三种方式?

<html>
<head>
 
<style type="text/css">
.newDiv {
    font-weight: bold;
}
</style>
 
<script>
function clk(event) {
    var parent = document.getElementById("parent");
     
    //改变className
    var child0 = document.createElement("div"); 
    child0.innerHTML = "child0";
    child0.className = "newDiv";
    parent.appendChild(child0);
    //改变cssText
    var child1 = document.createElement("div");
    child1.innerHTML = "child1";
    child1.style.cssText = "font-weight: bold";
    parent.appendChild(child1);
    //改变直接样式
    var child2 = document.createElement("div");
    child2.innerHTML = "child2";
    child2.style.fontWeight = "bold";
    parent.appendChild(child2);
}
</script>
 
</head>
<body>
<input type="button" value="click" onclick="clk(event);"/>
<div id="parent">
    <div>child</div>
</div>
</body>
</html>

 PS:

HTML DOM Style 对象http://www.w3school.com.cn/htmldom/dom_obj_style.asp

直接改变样式时可参考以上链接

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