案例思路:
利用样式的显示和隐藏,display:none隐藏元素 和display:block 显示元素
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<style type="text/css">
.box{
position: relative;
width: 80px;
height: 80px;
font-size: 12px;
text-align: center;
border: 1px solid #CCCCCC;
color: #f00;
margin: 0 auto;
}
.box img{
width: 60px;
margin-top: 5px;
}
.close-btn{
position: absolute;
top: -1px;left: -16px;
width: 14px;
height: 14px;
border: 1px solid #CCCCCC;
line-height: 14px;
cursor: pointer;
}
</style>
</head>
<body>
<div class="box">
二维码
<img src="img/erweima.png" >
<i class="close-btn">X</i>
</div>
</body>
<script type="text/javascript">
//获取样式
var box=document.querySelector(".box");
var btn=document.querySelector(".close-btn");
btn.onclick=function(){
box.style.display="none";
}
// 注意:这里不是删掉了,而是隐藏起来了
</script>
</html>