Adding double border around the container in Focus Pro. http://sridharkatakam.com/add-double-border-around-container-focus-pro/

functions.php

//* Add div.wrap1 and div.wrap2 inside .site-container 
add_action( 'genesis_before_header', 'sk_add_wraps_opening_divs', 9 );
function sk_add_wraps_opening_divs() {

	echo '<div class="wrap1"><div class="wrap2">';

}

add_action( 'genesis_after_footer', 'sk_add_wraps_closing_divs' );
function sk_add_wraps_closing_divs() {

	echo '</div></div>';

}

style.css

/* Adding double border around the container in Focus Pro
----------------------------------------------------------- */

body {
	background: #eee url("images/bg.png");
}

.site-container {
	background-color: #fff;
	margin-top: 3rem;
	margin-bottom: 3rem;
}

.wrap1 {
	border: 2px solid #DFDDDB;
	padding: 3px;
}

.wrap2 {
	border: 1px dashed #DFDDDB;
	padding: 1rem;
}

.site-header .widget-area {
	width: 658px;
}

.sidebar-primary {
	width: 270px;
}

.footer-widgets-1, .footer-widgets-2, .footer-widgets-3 {
	width: 300px;
}

@media only screen and (max-width: 1160px) {

	.site-header .widget-area {
		width: 538px;
	}

	.footer-widgets-1,
	.footer-widgets-2,
	.footer-widgets-3,
	.sidebar-primary {
		width: 230px;
	}

}

@media only screen and (max-width: 1023px) {

	.footer-widgets-1,
	.footer-widgets-2,
	.footer-widgets-3,
	.sidebar-primary,
	.site-header .widget-area {
		width: 100%;
	}

}