Takayuki Miyoshi on "[Plugin Contact Form 7] Style of on field different!"

In themes/uber/style.css at line #272, you have

input[type="text"], textarea {
	background-color: #fafafa;
	padding: 10px;
	font-family: "Droid Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
	-webkit-border-radius: 5px;
	-moz-border-radius: 5px;
	border-radius: 5px;
	color: #6a6a6a;
	border: 1px solid #ddd;
	background:	#fafafa url(images/field_bkg.png) repeat-x;
}

Change
input[type="text"], textarea
to
input[type="text"], input[type="email"], textarea