Index: src/wp-admin/css/common.css
===================================================================
--- src/wp-admin/css/common.css	(revision 35030)
+++ src/wp-admin/css/common.css	(working copy)
@@ -1579,7 +1579,14 @@
 	font-weight: 600;
 }

-.ie8 #screen-options-wrap legend {
+#request-filesystem-credentials-form legend {
+	font-size: 1em;
+	padding: 1.33em 0;
+	font-weight: 600;
+}
+
+.ie8 #screen-options-wrap legend,
+#request-filesystem-credentials-form legend {
 	color: inherit;
 }

Index: src/wp-admin/includes/file.php
===================================================================
--- src/wp-admin/includes/file.php	(revision 35030)
+++ src/wp-admin/includes/file.php	(working copy)
@@ -1138,7 +1138,7 @@
 </script>
 <form action="<?php echo esc_url( $form_post ) ?>" method="post">
 <div id="request-filesystem-credentials-form" class="request-filesystem-credentials-form">
-<h3 id="request-filesystem-credentials-title"><?php _e( 'Connection Information' ) ?></h3>
+<h2 id="request-filesystem-credentials-title"><?php _e( 'Connection Information' ) ?></h2>
 <p id="request-filesystem-credentials-desc"><?php
 	$label_user = __('Username');
 	$label_pass = __('Password');
@@ -1176,7 +1176,8 @@
 	</label>
 </div>
 <?php if ( isset($types['ssh']) ) : ?>
-<h4><?php _e('Authentication Keys') ?></h4>
+<fieldset>
+<legend><?php _e( 'Authentication Keys' ); ?></legend>
 <label for="public_key">
 	<span class="field-title"><?php _e('Public Key:') ?></span>
 	<input name="public_key" type="text" id="public_key" aria-describedby="auth-keys-desc" value="<?php echo esc_attr($public_key) ?>"<?php disabled( defined('FTP_PUBKEY') ); ?> />
@@ -1185,10 +1186,11 @@
 	<span class="field-title"><?php _e('Private Key:') ?></span>
 	<input name="private_key" type="text" id="private_key" value="<?php echo esc_attr($private_key) ?>"<?php disabled( defined('FTP_PRIKEY') ); ?> />
 </label>
+</fieldset>
 <span id="auth-keys-desc"><?php _e('Enter the location on the server where the public and private keys are located. If a passphrase is needed, enter that in the password field above.') ?></span>
 <?php endif; ?>
-<h4><?php _e('Connection Type') ?></h4>
-<fieldset><legend class="screen-reader-text"><span><?php _e('Connection Type') ?></span></legend>
+<fieldset>
+<legend><?php _e( 'Connection Type' ); ?></legend>
 <?php
 	$disabled = disabled( (defined('FTP_SSL') && FTP_SSL) || (defined('FTP_SSH') && FTP_SSH), true, false );
 	foreach ( $types as $name => $text ) : ?>