diff --git a/templates/decode.html b/templates/decode.html
index c2c034c..e97a270 100644
--- a/templates/decode.html
+++ b/templates/decode.html
@@ -5,16 +5,7 @@
 
     {% include 'header.html' %}
 
-    <div class="navigation divv">
-        <div class="decore1"></div>
-        <nav class="navlink">
-                <a href="{{ url_for('index') }}" class="link">на главную</a>
-                <a href="{{ url_for('sql') }}" class="link">sql пипка</a>
-                <a href="{{ url_for('found') }}" class="link">forensic</a>
-                <!--    <a href="">rfi</a>-->
-                <!--    <a href="">lfi</a>-->
-        </nav>
-    </div>
+    {% include 'sidenav.html' %}
     <div id="popup-overlay">
         <div id="popup">
 
diff --git a/templates/found.html b/templates/found.html
index cd426a4..5b3f9ce 100644
--- a/templates/found.html
+++ b/templates/found.html
@@ -5,16 +5,7 @@
 
     {% include 'header.html' %}
 
-    <div class="navigation divv">
-        <div class="decore1"></div>
-        <nav class="navlink">
-                <a href="{{ url_for('index') }}" class="link">на главную</a>
-                <a href="{{ url_for('sql') }}" class="link">sql пипка</a>
-                <a href="{{ url_for('decode') }}" class="link">encode and decode</a>
-                <!--    <a href="">rfi</a>-->
-                <!--    <a href="">lfi</a>-->
-        </nav>
-    </div>
+    {% include 'sidenav.html' %}
     <img id="help" src="{{ url_for('static', filename='imgs/icon.png') }}">
 </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/templates/header.html b/templates/header.html
index f7e955b..7835f17 100644
--- a/templates/header.html
+++ b/templates/header.html
@@ -1,5 +1,4 @@
 <div class="info divv">
     <a href="{{ url_for('index') }}"><h1 class="header">CTF для самых маленьких</h1></a>
     <h3 class="context">Для тех кто хотел бы разобраться, но не знает, с чего начать</h3>
-
-</div>
\ No newline at end of file
+</div>
diff --git a/templates/sidenav.html b/templates/sidenav.html
new file mode 100644
index 0000000..3c1e113
--- /dev/null
+++ b/templates/sidenav.html
@@ -0,0 +1,18 @@
+<div class="navigation divv">
+    <div class="decore1"></div>
+    <nav class="navlink">
+        <a href="{{ url_for('index') }}" class="link">на главную</a>
+    {% if request.path != url_for('sql') %}
+        <a href="{{ url_for('sql') }}" class="link">sql пипка</a>
+    {% else %}
+        <a href="{{ url_for('decode') }}" class="btn1">encode and decode</a>
+    {% endif %}
+    {% if request.path != url_for('found') %}
+        <a href="{{ url_for('found') }}" class="link">forensic</a>
+    {% else %}
+        <a href="{{ url_for('decode') }}" class="btn1">encode and decode</a>
+    {% endif %}
+{#        <!--    <a href="">rfi</a>--> #}
+{#        <!--    <a href="">lfi</a>--> #}
+    </nav>
+</div>
diff --git a/templates/sql-injection.html b/templates/sql-injection.html
index 6ab5d44..052ad2f 100644
--- a/templates/sql-injection.html
+++ b/templates/sql-injection.html
@@ -20,16 +20,7 @@
         </div>
     </div>
 
-    <div class="navigation divv">
-        <div class="decore1"></div>
-        <nav class="navlink">
-                <a href="{{ url_for('index') }}" class="link">на главную</a>
-                <a href="{{ url_for('found') }}" class="link">forensic</a>
-                <a href="{{ url_for('decode') }}" class="link">encode and decode</a>
-                <!--    <a href="">rfi</a>-->
-                <!--    <a href="">lfi</a>-->
-        </nav>
-    </div>
+    {% include 'sidenav.html' %}
 {% if error %}
     <div id="error">
        <p>{{ error }}</p>
@@ -44,4 +35,4 @@
     <img id="help" src="{{ url_for('static', filename='imgs/icon.png') }}">
 
 </body>
-</html>
\ No newline at end of file
+</html>