JS 點選事件onclick:點選物件小區域顏色,大區域顏色改變
阿新 • • 發佈:2019-02-16
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
*{margin: 0px;padding: 0px;border-collapse:collapse;}
#firtsdiv{width: 400px;height: 100px;border: 1px solid green;}
#firtsdiv >div{width: 400px;height: 50px;border: 1px solid blue;}
.span>span{width: 90px;height: 30px;float: right;margin: 5px;}
</style>
<script type="text/javascript">
window.onload=function(){
var spans=document.getElementsByTagName("span");
for (var i=0;i<spans.length;i++) {
spans[i].onclick=function(){
document.getElementById("showdiv").style.backgroundColor=this.style.background;
}
}
}
</script>
</head>
<body>
<div id="firtsdiv">
<div id="showdiv"></div>
<div class="span">
<span style="background:black;"></span>
<span style="background: blue;"></span>
<span style="background: blueviolet;"></span>
<span style="background: red;"></span>
</div>
</div>
</body>
</html>