diff --git a/modules/member/skins/default/leave_form.html b/modules/member/skins/default/leave_form.html
index aded79106..65585a11f 100644
--- a/modules/member/skins/default/leave_form.html
+++ b/modules/member/skins/default/leave_form.html
@@ -3,7 +3,7 @@
 <div cond="$XE_VALIDATOR_MESSAGE" class="message {$XE_VALIDATOR_MESSAGE_TYPE}">
 	<p>{$XE_VALIDATOR_MESSAGE}</p>
 </div>
-<form ruleset="leaveMember" id="fo_insert_member" action="./" method="post">
+<form ruleset="leaveMember" id="fo_insert_member" class="form" action="./" method="post">
 	<input type="hidden" name="module" value="member" />
 	<input type="hidden" name="act" value="procMemberLeave" />
     <input type="hidden" name="mid" value="{$mid}" />
diff --git a/modules/member/skins/default/login_form.html b/modules/member/skins/default/login_form.html
index 2a201280b..20fd52c2a 100644
--- a/modules/member/skins/default/login_form.html
+++ b/modules/member/skins/default/login_form.html
@@ -4,7 +4,7 @@
 	<p>{$XE_VALIDATOR_MESSAGE}</p>
 </div>
 <h1 class="h1">{$lang->cmd_login}</h1>
-<form ruleset="@login" action="./" method="post" id="fo_member_login">
+<form ruleset="@login" action="./" method="post" id="fo_member_login" class="form">
 	<input type="hidden" name="success_return_url" value="{$referer_url}" />
 	<input type="hidden" name="act" value="procMemberLogin" />
 	<ul>
diff --git a/modules/member/skins/default/logout.html b/modules/member/skins/default/logout.html
index d153c6024..27e969a20 100644
--- a/modules/member/skins/default/logout.html
+++ b/modules/member/skins/default/logout.html
@@ -1,6 +1,6 @@
 <include target="./common_header.html" />
 <import target="filter/logout.xml" />
-<form action="./" method="get" onsubmit="return procFilter(this, logout)">
+<form action="./" method="get" class="form" onsubmit="return procFilter(this, logout)">
 	<input type="hidden" name="mid" value="{$mid}" />
     <h1 class="h1">{$lang->cmd_logout}</h1>
 	<p>{$lang->confirm_logout}</p>
diff --git a/modules/member/skins/default/modify_email_address.html b/modules/member/skins/default/modify_email_address.html
index 32ad7220c..49e099a4b 100644
--- a/modules/member/skins/default/modify_email_address.html
+++ b/modules/member/skins/default/modify_email_address.html
@@ -2,7 +2,7 @@
 <div cond="$XE_VALIDATOR_MESSAGE" class="message {$XE_VALIDATOR_MESSAGE_TYPE}">
 	<p>{$XE_VALIDATOR_MESSAGE}</p>
 </div>
-<form ruleset="modifyEmailAddress" action="./" method="post">
+<form ruleset="modifyEmailAddress" class="form" action="./" method="post">
 	<input type="hidden" name="module" value="member" />
 	<input type="hidden" name="act" value="procMemberModifyEmailAddress" />
 	<input type="hidden" name="success_return_url" value="{getRequestUriByServerEnviroment()}" />
diff --git a/modules/member/skins/default/modify_info.html b/modules/member/skins/default/modify_info.html
index 0a237e61f..e57775d65 100644
--- a/modules/member/skins/default/modify_info.html
+++ b/modules/member/skins/default/modify_info.html
@@ -12,7 +12,7 @@
 <div cond="$XE_VALIDATOR_MESSAGE" class="message {$XE_VALIDATOR_MESSAGE_TYPE}">
 	<p>{$XE_VALIDATOR_MESSAGE}</p>
 </div>
-<form ruleset="@insertMember" id="fo_insert_member" action="./" method="post" enctype="multipart/form-data">
+<form ruleset="@insertMember" id="fo_insert_member" class="form" action="./" method="post" enctype="multipart/form-data">
     <input type="hidden" name="act" value="procMemberModifyInfo" />
     <input type="hidden" name="module" value="member" />
     <input type="hidden" name="member_srl" value="{$member_info->member_srl}" />
diff --git a/modules/member/skins/default/modify_password.html b/modules/member/skins/default/modify_password.html
index 8ab2f0df1..fa7d836b6 100644
--- a/modules/member/skins/default/modify_password.html
+++ b/modules/member/skins/default/modify_password.html
@@ -1,6 +1,6 @@
 <include target="./common_header.html" />
 <h1 class="h1">{$member_title = $lang->cmd_modify_member_password}</h1>
-<form ruleset="modifyPassword" id="fo_insert_member" action="./" method="post">
+<form ruleset="modifyPassword" id="fo_insert_member" class="form" action="./" method="post">
 	<input type="hidden" name="module" value="member" />
 	<input type="hidden" name="act" value="procMemberModifyPassword" />
     <input type="hidden" name="mid" value="{$mid}" />
diff --git a/modules/member/skins/default/rechecked_password.html b/modules/member/skins/default/rechecked_password.html
index 483ce2282..330862dfe 100644
--- a/modules/member/skins/default/rechecked_password.html
+++ b/modules/member/skins/default/rechecked_password.html
@@ -3,7 +3,7 @@
 <div cond="$XE_VALIDATOR_MESSAGE" class="message {$XE_VALIDATOR_MESSAGE_TYPE}">
 	<p>{$XE_VALIDATOR_MESSAGE}</p>
 </div>
-<form action="./index.php" method="post" ruleset="recheckedPassword">
+<form class="form" action="./index.php" method="post" ruleset="recheckedPassword">
 	<input type="hidden" name="act" value="procMemberModifyInfoBefore" />
 	<input type="hidden" name="module" value="member" />
 	<ul>
diff --git a/modules/member/skins/default/resend_auth_mail.html b/modules/member/skins/default/resend_auth_mail.html
index 61dcaec22..ad1edc1f1 100644
--- a/modules/member/skins/default/resend_auth_mail.html
+++ b/modules/member/skins/default/resend_auth_mail.html
@@ -2,7 +2,7 @@
 <div cond="$XE_VALIDATOR_MESSAGE" class="message {$XE_VALIDATOR_MESSAGE_TYPE}">
 	<p>{$XE_VALIDATOR_MESSAGE}</p>
 </div>
-<form ruleset="resendAuthMail" action="./" method="post">
+<form ruleset="resendAuthMail" class="form" action="./" method="post">
 	<input type="hidden" name="module" value="member" />
 	<input type="hidden" name="act" value="procMemberResendAuthMail" />
 	<input type="hidden" name="success_return_url" value="{getUrl(act, $act)}" />
diff --git a/modules/member/skins/default/reset_mail.html b/modules/member/skins/default/reset_mail.html
index 3d1ded90c..9e44b718c 100644
--- a/modules/member/skins/default/reset_mail.html
+++ b/modules/member/skins/default/reset_mail.html
@@ -2,7 +2,7 @@
 <div cond="$XE_VALIDATOR_MESSAGE" class="message {$XE_VALIDATOR_MESSAGE_TYPE}">
 	<p>{$XE_VALIDATOR_MESSAGE}</p>
 </div>
-<div>
+<div class="form">
     <h1 class="h1">{$lang->cmd_resend_auth_mail}</h1>
     <p>{sprintf($lang->about_reset_auth_mail, $memberInfo->email_address)}</p>
 	<ul>
diff --git a/modules/member/skins/default/signup_form.html b/modules/member/skins/default/signup_form.html
index 77e452835..41c47c06b 100644
--- a/modules/member/skins/default/signup_form.html
+++ b/modules/member/skins/default/signup_form.html
@@ -7,7 +7,7 @@
 	<div cond="$XE_VALIDATOR_MESSAGE" class="message {$XE_VALIDATOR_MESSAGE_TYPE}">
 		<p>{$XE_VALIDATOR_MESSAGE}</p>
 	</div>
-    <form ruleset="@insertMember" id="fo_insert_member" action="./" method="post" enctype="multipart/form-data">
+    <form ruleset="@insertMember" id="fo_insert_member" class="form" action="./" method="post" enctype="multipart/form-data">
 		<input type="hidden" name="act" value="procMemberInsert" />
 		<div class="agreement" cond="$member_config->agreement">
 			<div class="text">