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index b020d0a2..659f89fe 100644
--- a/tests_hugo/chat_node/chat_client/chat.html
+++ b/tests_hugo/chat_node/chat_client/chat.html
@@ -8,70 +8,110 @@
 
 	<body>
 
-		<input type="button"   class="vanish input_outside" id="input_outside">
-		<input type="checkbox" class="vanish" id="chat_input">
-		<input type="button"   class="vanish" id="new_room_form">
+		<br><br><button onclick="layout(this.innerText)">close</button>
+		<br><br><button onclick="layout(this.innerText)">room</button>
+		<br><br><button onclick="layout(this.innerText)">new</button>
+		<br><br><button onclick="layout(this.innerText)">settings</button>
+		<br><br><button onclick="layout(this.innerText)">room_settings</button>
+		<br><br><button onclick="layout(this.innerText)">protected</button>
+		<br><br><button onclick="layout(this.innerText)">create</button>
+		<br><br><button onclick="layout(this.innerText)">user</button>
+		<br><br><button onclick="layout(this.innerText)">mute</button>
 
-		<div class="chat _box">
+		<div class="close" id="chat_box">
 
-			<div class="chat _item controls_area">
-				<!-- MENU
-				<div class="control rooms drop_down">
-					<p class="_title" tabindex=0>rooms</p>
-					<div class="_items" tabindex=0 id="rooms">
+			<button class="chat_item"            id="chat_chat"       onclick="layout('open')"          >chat</button>
+			<button class="chat_item"            id="chat_close"      onclick="layout('close')"         >new</button>
+			<button class="chat_item"            id="chat_new"        onclick="layout('new')"           >new</button>
+			<button class="chat_item"            id="chat_settings"   onclick="layout('settings')"      >settings</button>
+			<button class="chat_item"            id="chat_room_name"  onclick="layout('room_settings')" >placeholder</button>
+			<button class="chat_item"            id="chat_send"       onclick="send_msg()"              >send</button>
+			<p      class="chat_item"            id="chat_create"                                       >create</p>
+			<p      class="chat_item"            id="chat_user_name"                                    >placeholder</p>
+			<div    class="chat_item"            id="chat_msg_thread"                                   ><!-- messages go there --></div>
+			<div    class="chat_item"            id="chat_write"      contenteditable                   ><!-- write message here --></div>
+			<button class="chat_item chat_back"  id="chat_back_home"  onclick="layout('home')"          ></button>
+			<button class="chat_item chat_back"  id="chat_back_room"  onclick="layout('room')"          ></button>
+			<button class="chat_item chat_back"  id="chat_back_new"   onclick="layout('new')"           ></button>
+			<button class="chat_item chat_back"  id="chat_back_user"  onclick="layout('user')"          ></button>
+
+			<!-- --------------------------------
+				PANELS
+			--------------------------------- -->
+			<div    class="chat_item chat_panel" id="chat_panel_home">
+				<div id="chat_room_list" class="_first_child_vanish">
+					<div class="chat_room_name">
+						<p>you don't have any chat yet</p>
 					</div>
-				</div>
-				-------------- -->
-				<select class="control rooms">
-					<option class="_title">rooms</option>
-				</select>
-				<!-- MENU -------------- -->
-				<div class="control new">
-					<label for="new_room_form"><p>new</p></label>
-				</div>
-				<!-- MENU -------------- -->
-				<div class="control settings">
-					<p onclick="">settings</p>
-				</div>
-			</div>
-
-			<label class="chat _item open_close button" for="chat_input">
-				<p>chat</p>
-			</label>
-
-			<div class="chat _item main_window">
-				<!-- THREAD ------------ -->
-				<div class="msg_box" id="msg_thread">
-					<!-- messages go there -->
-				</div>
-				<p id="msg_box_room_name">room name</p>
-				<!-- ACTION BOARD ------ -->
-				<div class="action_board" id="action_board">
-					<!-- CREATE ------------ -->
-					<div class="action_pannel _create" id="create" tabindex=0>
-						<p class="_title">new room</p>
-						<input class="_search" type="text" onkeyup="search_room()" placeholder="type the name of a room">
-						<div class="_list">
-							<p>create a new group</p>
-						</div>
-						<label for="input_outside" class="close_croice"></label>
+					<!-- placeholders -->
+					<div class="chat_room_name">
+						<p>placeholder</p>
 					</div>
+					<div class="chat_room_name">
+						<p>placeholder</p>
+					</div>
+					<div class="chat_room_name">
+						<p>placeholder</p>
+					</div>
+					<!-- END placeholders -->
 				</div>
 			</div>
-
-			<div class="chat _item msg_write">
-				<div class="text_area" id="msg_write" contenteditable>
-				<!-- write message here -->
-				</div>
+			<div    class="chat_item chat_panel" id="chat_panel_room">
+				<!-- content -->
+				panel room
+			</div>
+			<div    class="chat_item chat_panel" id="chat_panel_new">
+				<!-- content -->
+				panel new
+			</div>
+			<div    class="chat_item chat_panel" id="chat_panel_settings">
+				<!-- content -->
+				panel settings
+			</div>
+			<div    class="chat_item chat_panel" id="chat_panel_room_settings">
+				<!-- content -->
+				panel room settings
+			</div>
+			<div    class="chat_item chat_panel" id="chat_panel_protected">
+				<!-- content -->
+				panel protected
+			</div>
+			<div    class="chat_item chat_panel" id="chat_panel_create">
+				<!-- content -->
+				panel create
+			</div>
+			<div    class="chat_item chat_panel" id="chat_panel_user">
+				<!-- content -->
+				panel user
+			</div>
+			<div    class="chat_item chat_panel" id="chat_panel_mute">
+				<!-- content -->
+				panel mute
 			</div>
 
-			<button class="chat _item msg_send button" onclick="send_msg()">
-				<p>send</p>
-			</button>
+			<!-- --------------------------------
+				MODELS
+			<div    class="chat_model" id="chat_model_myroom_name">
+			</div>
+			<div    class="chat_model" id="chat_model_msg">
+			</div>
+			<div    class="chat_model" id="chat_model_room_name">
+			</div>
+			<div    class="chat_model" id="chat_model_blocked_user">
+			</div>
+			<div    class="chat_model" id="chat_model_room_user">
+			</div>
+			--------------------------------- -->
 
 		</div>
 
 
+		<script>
+			function layout(layout_class) {
+				document.getElementById('chat_box').className = layout_class;
+			};
+		</script>
+
 		<!-- https://socket.io/docs/v4/client-installation/ -->
 		<script src="https://cdn.socket.io/4.5.3/socket.io.min.js" integrity="sha384-WPFUvHkB1aHA5TDSZi6xtDgkF0wXJcIIxXhC6h8OT8EH3fC5PWro5pWJ1THjcfEi" crossorigin="anonymous"></script>
 		<script>
diff --git a/tests_hugo/chat_node/chat_client/style/action_board.css b/tests_hugo/chat_node/chat_client/style/action_board.css
index b9bcf55c..5afc8801 100644
--- a/tests_hugo/chat_node/chat_client/style/action_board.css
+++ b/tests_hugo/chat_node/chat_client/style/action_board.css
@@ -50,7 +50,7 @@ label.close_croice::after {
 */
 
 /* show action board and _create */
-input#new_room_form:focus ~ .chat._box #action_board ._create,
+input#new_room_form:focus ~ #chat_box #action_board ._create,
 #action_board ._create:focus-within {
 	/*
 	display: flex;
diff --git a/tests_hugo/chat_node/chat_client/style/chat.css b/tests_hugo/chat_node/chat_client/style/chat.css
index 0c8d26af..48f55774 100644
--- a/tests_hugo/chat_node/chat_client/style/chat.css
+++ b/tests_hugo/chat_node/chat_client/style/chat.css
@@ -1,90 +1,115 @@
 
-@import 'chat_buttons.css';
+/*
 @import 'chat_thread.css';
 @import 'chat_write.css';
 @import 'chat_controls.css';
 @import 'action_board.css';
+*/
+
+@import 'chat_buttons.css';
+@import 'layout_close.css';
 
 
-/* vanish elements wihtout display:none; */
+/* vanish elements wihtout display:none;
 input.vanish {
 	opacity: 0;
 	position: absolute;
 	pointer-events: none;
 }
+*/
 
-/* Hide scrollbar */
-.chat._box * {
+/* Hide scrollbar
+*/
+#chat_box * {
 	-ms-overflow-style: none;  /* IE and Edge */
 	scrollbar-width: none;  /* Firefox */
 }
-.chat._box *::-webkit-scrollbar {
+#chat_box *::-webkit-scrollbar {
 	display: none;  /* Chrome, Safari and Opera */
 }
 
 
 /*
- * GRID
+/* GRID
  */
 
-.chat._box * {
+#chat_box * {
 	display: flex;
 	flex-direction: column;
   position: relative;
 	box-sizing: border-box;
+	padding: 0px;
+	margin: auto;
+}
+#chat_box .chat_item                {
+	display: none;
+	/*
+	border: 1px solid black;
+	*/
 }
-.chat._item.controls_area  { grid-area: controls;}
-.chat._item.open_close     { grid-area: open_close;}
-.chat._item.main_window    { grid-area: main_window;}
-.chat._item.msg_write      { grid-area: msg_write;}
-.chat._item.msg_send       { grid-area: msg_send;}
 
-.chat._box {
+.chat_item#chat_chat                { grid-area: chat;}
+.chat_item#chat_close               { grid-area: close;}
+.chat_item#chat_new                 { grid-area: new;}
+.chat_item#chat_settings            { grid-area: settings;}
+.chat_item#chat_room_name           { grid-area: room_name;}
+.chat_item#chat_send                { grid-area: send;}
+.chat_item#chat_create              { grid-area: create;}
+.chat_item#chat_user_name           { grid-area: user_name;}
+.chat_item#chat_msg_thread          { grid-area: msg_thread;}
+.chat_item#chat_write               { grid-area: write;}
+.chat_item#chat_back_home           { grid-area: back_home;}
+.chat_item#chat_back_room           { grid-area: back_room;}
+.chat_item#chat_back_new            { grid-area: back_new;}
+.chat_item#chat_back_user           { grid-area: back_user;}
+.chat_item#chat_panel_home          { grid-area: panel_home;}
+.chat_item#chat_panel_room          { grid-area: panel_room;}
+.chat_item#chat_panel_new           { grid-area: panel_new;}
+.chat_item#chat_panel_settings      { grid-area: panel_settings;}
+.chat_item#chat_panel_room_settings { grid-area: panel_room_settings;}
+.chat_item#chat_panel_protected     { grid-area: panel_protected;}
+.chat_item#chat_panel_create        { grid-area: panel_create;}
+.chat_item#chat_panel_user          { grid-area: panel_user;}
+.chat_item#chat_panel_mute          { grid-area: panel_mute;}
+
+#chat_box {
   position: fixed;
   bottom: 20px;
   right: 20px;
   display: grid;
-  grid:
-    ' controls    open_close  ' auto
-    ' main_window main_window ' 1fr
-    ' msg_write   msg_send    ' auto
-    / 1fr         auto;
-  gap: 0px;
-  padding: 0px;
-  width: auto;
-  height: auto;
 
-  border: 1px solid green;
-}
-.chat._item > * {
-	display: flex;
+  gap: 5px;
+  padding: 5px;
+  width: 300px;
+  height: 400px;
+
+  border: 1px solid black;
 }
 
 
 /*
  * COLLAPSE
- */
 
 .chat._item:not(.open_close) {
   display: none;
 }
 #chat_input:checked ~
-.chat._box {
+#chat_box {
   gap: 5px;
   padding: 5px;
   width: 300px;
   height: 400px;
 }
 #chat_input:checked ~
-.chat._box .chat._item {
+#chat_box .chat._item {
   display: flex;
 }
 #chat_input:checked ~
-.chat._box .chat._item.open_close p {
+#chat_box .chat._item.open_close p {
   display: none;
 }
 #chat_input:checked ~
-.chat._box .chat._item.open_close {
+#chat_box .chat._item.open_close {
   width: 30px;
   height: 20px;
   padding: 0px;
@@ -93,7 +118,7 @@ input.vanish {
   border: none;
 }
 #chat_input:checked ~
-.chat._box .chat._item.open_close::before {
+#chat_box .chat._item.open_close::before {
   content: "";
   position: absolute;
   left: 50%;
@@ -103,4 +128,5 @@ input.vanish {
   width: 15px;
   background-color: black;
 }
+ */
 
diff --git a/tests_hugo/chat_node/chat_client/style/chat_buttons.css b/tests_hugo/chat_node/chat_client/style/chat_buttons.css
index e1cd7927..c027f778 100644
--- a/tests_hugo/chat_node/chat_client/style/chat_buttons.css
+++ b/tests_hugo/chat_node/chat_client/style/chat_buttons.css
@@ -3,7 +3,7 @@
  * BUTTONS
  */
 
-.chat._box .button {
+#chat_box button {
   display: flex;
   width: auto;
   padding: 10px;
@@ -12,14 +12,11 @@
 	border: none;
   background-color: rgb(220, 220, 220);
 }
-.chat._box .button p {
-  margin: auto;
-}
-.chat._box .button:focus,
-.chat._box .button:hover {
+#chat_box button:focus,
+#chat_box button:hover {
   background-color: rgb(200, 200, 200);
 }
-.chat_box .button:active {
+.chat_box button:active {
   background-color: rgb(220, 220, 220);
 }
 
diff --git a/tests_hugo/chat_node/chat_client/style/chat_thread.css b/tests_hugo/chat_node/chat_client/style/chat_thread.css
index 7ac96d39..ab4f70ec 100644
--- a/tests_hugo/chat_node/chat_client/style/chat_thread.css
+++ b/tests_hugo/chat_node/chat_client/style/chat_thread.css
@@ -9,7 +9,7 @@
 	width: 100%;
 	padding: 5px;
 }
-.chat._box #msg_thread div {
+#chat_box #msg_thread div {
 	white-space: pre-wrap;
 	margin: 5px auto;
 	padding: 5px;
@@ -21,7 +21,7 @@
 	ROOM NAME
 */
 
-.chat._box #msg_box_room_name {
+#chat_box #msg_box_room_name {
 	position: absolute;
 	top: 0px;
 	left: 0px;
@@ -38,17 +38,17 @@
 	ALL MSG
 */
 
-.chat._box #msg_thread div {
+#chat_box #msg_thread div {
 	margin-left: 0px;
 	background-color: rgb(210, 210, 210);
 	max-width: 80%;
 }
-.chat._box #msg_thread div p.name {
+#chat_box #msg_thread div p.name {
 	margin: 0px;
 	font-size: 12px;
 	color: rgb(100, 100, 100);
 }
-.chat._box #msg_thread div p.msg {
+#chat_box #msg_thread div p.msg {
 	margin: 5px 0px;
 }
 
@@ -57,12 +57,12 @@
 	MSG PERSO
 */
 
-.chat._box #msg_thread div.me {
+#chat_box #msg_thread div.me {
 	margin-right: 0px;
 	margin-left: auto;
 	background-color: rgb(210, 110, 10);
 }
-.chat._box #msg_thread div.me p.name {
+#chat_box #msg_thread div.me p.name {
 	display: none;
 }
 
@@ -71,14 +71,14 @@
 	MSG SERVER
 */
 
-.chat._box #msg_thread div.SERVER {
+#chat_box #msg_thread div.SERVER {
 	margin-left: auto;
 	background-color: transparent;
 }
-.chat._box #msg_thread div.SERVER p.name {
+#chat_box #msg_thread div.SERVER p.name {
 	display: none;
 }
-.chat._box #msg_thread div.SERVER p.msg {
+#chat_box #msg_thread div.SERVER p.msg {
 	margin: 0px auto;
 	font-size: 12px;
 	color: rgb(100, 100, 100);
diff --git a/tests_hugo/chat_node/chat_client/style/layout_close.css b/tests_hugo/chat_node/chat_client/style/layout_close.css
new file mode 100644
index 00000000..fa77c769
--- /dev/null
+++ b/tests_hugo/chat_node/chat_client/style/layout_close.css
@@ -0,0 +1,27 @@
+
+/*
+  grid:
+    ' controls    close       ' auto
+    ' main_window main_window ' 1fr
+    ' msg_write   msg_send    ' auto
+    / 1fr         auto;
+
+#chat_box.close {
+  grid:
+    ' close ' auto
+    / auto;
+}
+*/
+#chat_box.close {
+  gap: 0px;
+  padding: 0px;
+  width: auto;
+  height: auto;
+  grid:
+    ' chat ' auto
+    / auto;
+}
+#chat_box.close .chat_item#chat_chat {
+	display: flex;
+}
+
