正文
修改input:file样式
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>Uploadfile</title>
<style>
*{
margin: 0;
padding: 0;
}
a{
width: 200px;height: 30px;background-color: blue;display: block;margin: 100px auto;overflow: hidden;position: relative;
}
input{
font-size: 118px;cursor: pointer;position: absolute;right: 0;top: 0;opacity: 0;filter:alpha(opacity=0);
}
</style>
</head>
<body>
<a href="#"><input type="file" name="" id="" /></a>
</body>
</html>
