wp-contact-form.1.5.1.1 plugin text capitalize

I install this plugin,activated it but when you fill in your name,email,website all appears in uppercase and bold.I want to capitalize the text.I edit plugin wp-contact-form.php like this but still i cannot solve my problem:

.contactleft {
	width: 25%;
	white-space: pre;
	text-align: right;
	text-transform: capitalize;
	clear: both;
	float: left;
	display: inline;
	padding: 4px;
	margin: 5px 0;
}

.contactright {
	width: 70%;
	text-align: left;
	text-transform: capitalize;
	float: right;
	display: inline;
	padding: 4px;
	margin: 5px 0;
}