<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
label {
cursor: pointer;
background-color: lightblue;
color: #ffffff;
padding: 10px 20px;
}
#upload {
opacity: 0;
position: absolute;
z-index: -1;
}
</style>
</head>
<body>
<form action="/form/sumbit" method="get">
<label for="upload">Upload a file</label>
<input type="file" name="photo" id="upload" />
</form>
</body>
</html>