Index: src/wp-admin/css/customize-controls.css
===================================================================
--- src/wp-admin/css/customize-controls.css	(revision 31909)
+++ src/wp-admin/css/customize-controls.css	(working copy)
@@ -883,6 +883,13 @@
 	margin-bottom: 8px;
 }
 
+.wp-customizer .theme-browser .themes .more-details {
+	z-index: 1;
+}
+.wp-customizer .theme-browser .theme a:focus .more-details {
+	opacity: 1;
+}
+
 .wp-customizer .theme-browser .themes {
 	padding-bottom: 8px;
 }
Index: src/wp-admin/js/customize-controls.js
===================================================================
--- src/wp-admin/js/customize-controls.js	(revision 31909)
+++ src/wp-admin/js/customize-controls.js	(working copy)
@@ -639,14 +639,6 @@
 				section.closeDetails();
 			});
 
-			section.container.on( 'click keydown', '.theme-actions .button', function( event ) {
-				if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
-					return;
-				}
-
-				$( '.wp-full-overlay' ).addClass( 'customize-loading' );
-			});
-
 			section.container.on( 'input', '#themes-filter', function( event ) {
 				var count,
 					term = event.currentTarget.value.toLowerCase().trim().replace( '-', ' ' ),
@@ -1854,19 +1846,15 @@
 			var control = this;
 
 			// Bind details view trigger.
-			control.container.on( 'click keydown', '.theme', function( event ) {
+			control.container.on( 'click keydown', '.theme-actions .button', function( event ) {
 				if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 					return;
 				}
 
-				if ( 'button' === event.target.className ) {
-					return;
-				}
-
 				api.section( control.section() ).showDetails( control.params.theme );
 			});
 
-			control.container.on( 'click keydown', '.theme-actions .button', function( event ) {
+			control.container.on( 'click keydown', '.preview-link', function( event ) {
 				if ( api.utils.isKeydownButNotEnterEvent( event ) ) {
 					return;
 				}
Index: src/wp-includes/class-wp-customize-control.php
===================================================================
--- src/wp-includes/class-wp-customize-control.php	(revision 31909)
+++ src/wp-includes/class-wp-customize-control.php	(working copy)
@@ -1201,15 +1201,17 @@
 	 */
 	public function content_template() {
 	?>
-		<div class="theme<# if ( data.theme.active ) { #> active<# } #>" tabindex="0" aria-describedby="{{ data.theme.id }}-action {{ data.theme.id }}-name">
+		<div class="theme<# if ( data.theme.active ) { #> active<# } #>" aria-describedby="{{ data.theme.id }}-action {{ data.theme.id }}-name">
 			<# if ( data.theme.screenshot[0] ) { #>
 				<div class="theme-screenshot">
-					<img src="{{ data.theme.screenshot[0] }}" alt="" />
+					<a class="preview-link" href="<?php echo add_query_arg( 'theme', '{{ data.theme.id }}', remove_query_arg( 'theme' ) ); ?>" target="_top">
+						<span class="more-details"><?php _e( 'Live Preview' ); ?></span>
+						<img src="{{ data.theme.screenshot[0] }}" alt="{{ data.theme.name }}" />
+					</a>
 				</div>
 			<# } else { #>
 				<div class="theme-screenshot blank"></div>
 			<# } #>
-			<span class="more-details" id="{{ data.theme.id }}-action"><?php _e( 'Theme Details' ); ?></span>
 			<div class="theme-author"><?php printf( __( 'By %s' ), '{{ data.theme.author }}' ); ?></div>
 
 			<# if ( data.theme.active ) { #>
@@ -1225,7 +1227,7 @@
 
 			<# if ( ! data.theme.active ) { #>
 				<div class="theme-actions">
-					<a class="button" href="<?php echo add_query_arg( 'theme', '{{ data.theme.id }}', remove_query_arg( 'theme' ) ); ?>" target="_top"><?php _e( 'Live Preview' ); ?></a>
+					<span class="button" tabindex="0" id="{{ data.theme.id }}-action"><?php _e( 'Theme Details' ); ?></span>
 				</div>
 			<# } #>
 		</div>