<style type="text/css">
.sem-file-button {
	position:relative;
	overflow:hidden;
	display:inline-block;
}

.sem-file {
	position: absolute;
	top: 0;
	right: 0;
	margin: 0;
	opacity: 0;
	-ms-filter: 'alpha(opacity=0)';
	font-size: 200px;
	direction: ltr;
	cursor: pointer;
}
</style>

<span class="sem-file-button">
	<span class="sem-file-button-text"><a href="#">Select File</a></span>
	<input type="file" class="sem-file"  />
</span>