Center header image logo in Genesis

functions.php

<?php
//* Do NOT include the opening php tag
//* Paste this code in your Genesis Child Theme functions.php

/* Header
---------------------------------------------------------------------------------------------------- */
/* Remove Header Widget Area for centered logo
--------------------------------------------- */
unregister_sidebar( 'header-right' );

style.css

/* Site Header
---------------------------------------------------------------------------------------------------- */
.title-area {
	float: left;
	padding: 2px 0;
	width: 100%; /*320px;   Modified for centered logo*/
}

/* ## Widget Area
--------------------------------------------- */

.site-header .widget-area {
	float: right;
	text-align: right;
	width: 0px; /*800px;  Modified for centered logo*/
        margin-top: 1.5rem;
}

/* Navigation Header
---------------------------------------------------------------------------------------------------- */
.header-image .site-title > a {
	background: url(images/logo.png) no-repeat left;
        background-position: center; /*centered logo*/
	float: left;
	min-height: 120px;
	width: 100%;
}