Custom input file http://jsbin.com/woveyuz
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<style>
div {
overflow:hidden;
width:95px;
height:37px;
cursor:pointer;
background:url(http://absolvo.ru/tmp/17/input-file.gif) no-repeat;
}
input {
opacity:0;
filter:alpha(opacity:0);
font-size:199px;
cursor:pointer;
padding:0px;
margin:0px;
border:none;
margin-left:-450px;
}
</style>
</head>
<body>
<div title="click me">
<input type="file" size="1" />
</div>
</body>
</html>