diff --git a/donation_website/index.html b/donation_website/index.html
index 91245bd..a3049c9 100644
--- a/donation_website/index.html
+++ b/donation_website/index.html
@@ -51,7 +51,7 @@
                 <div class="container">
                     <div class="wrap">
                         <div class="logo">
-                            <a href="#" class="menu-trigger"><i class='bx bx-menu'></i></a>
+                            <a href="#" class="menu-trigger" open-btn><i class='bx bx-menu'></i></a>
                             <a href=""><span>Blood</span> Bank</a>
                             <img src="images/logo-1.png" alt="">
                         </div>
@@ -61,14 +61,14 @@
                                 <li><a href="#"><span>Donate</span><i class='bx bx-chevron-down' ></i></a>
                                     <ul class="submenu">
                                         <li><a href="">Donate Blood</a></li>
-                                        <li><a href="">Donation types</a></li>
+                                        <li><a href="">Donation Types</a></li>
                                     </ul>
                                 </li>
                                 <li><a href="#"><span>Learn</span><i class='bx bx-chevron-down' ></i></a>
                                     <ul class="submenu">
-                                        <li><a href="">Blood types</a></li>
-                                        <li><a href="">First time Blood Doner</a></li>
-                                        <li><a href="">Scientific research</a></li>
+                                        <li><a href="">Blood Types</a></li>
+                                        <li><a href="">First Time Blood Doner</a></li>
+                                        <li><a href="">Scientific Research</a></li>
                                     </ul>
                                 </li>
                                 <li><a href="#"><span>Support</span><i class='bx bx-chevron-down' ></i></a>
@@ -79,9 +79,9 @@
                                 </li>
                                 <li><a href="#"><span>Service</span><i class='bx bx-chevron-down' ></i></a>
                                     <ul class="submenu">
-                                        <li><a href="">Laboratory services</a></li>
-                                        <li><a href="">Clinical apheresis services </a></li>
-                                        <li><a href="">Medical consultation</a></li>
+                                        <li><a href="">Laboratory Services</a></li>
+                                        <li><a href="">Clinical Apheresis Services </a></li>
+                                        <li><a href="">Medical Consultation</a></li>
                                     </ul>
                                 </li>
                             </ul>
@@ -95,6 +95,49 @@
                 </div>
             </div>
         </header>
+        <main></main>
+        <footer></footer>
+
+        <div class="overlay" data-overlay></div>
+
+        <nav class="mobile" data-show>
+            <a href="#" class="close-trigger" close-btn><i class='bx bx-x-circle' ></i></a>
+            <ul>
+                <li><a href="">Home</a></li>
+                <li><a href="">Donate</a>
+                    <span class="sub-trigger"><i class='bx bx-chevron-down' ></i></span>
+                    <ul class="submenu">
+                        <li><a href="">Donate Blood</a></li>
+                        <li><a href="">Donation Types</a></li>
+                    </ul>
+                </li>
+                <li><a href="">Learn</a>
+                    <span class="sub-trigger"><i class='bx bx-chevron-down' ></i></span>
+                    <ul class="submenu">
+                        <li><a href="">Blood Types</a></li>
+                        <li><a href="">First Time Blood Doner</a></li>
+                        <li><a href="">Scientific Research</a></li>
+                    </ul>
+                </li>
+                <li><a href="">Support</a>
+                    <span class="sub-trigger"><i class='bx bx-chevron-down' ></i></span>
+                    <ul class="submenu">
+                        <li><a href="">Volunteer</a></li>
+                        <li><a href="">Partnerships</a></li>
+                    </ul>
+                </li>
+                <li><a href="">Service</a>
+                    <span class="sub-trigger"><i class='bx bx-chevron-down' ></i></span>
+                    <ul class="submenu">
+                        <li><a href="">Laboratory Services</a></li>
+                        <li><a href="">Clinical Apheresis Services </a></li>
+                        <li><a href="">Medical Consultation</a></li>
+                    </ul>
+                </li>
+            </ul>
+        </nav>
     </div>
+
+    <script src="main.js"></script>
 </body>
 </html>
\ No newline at end of file
diff --git a/donation_website/main.js b/donation_website/main.js
index e69de29..388bf2e 100644
--- a/donation_website/main.js
+++ b/donation_website/main.js
@@ -0,0 +1,17 @@
+const menuTrigger = document.querySelectorAll('[open-btn]');
+const mobileMenu = document.querySelectorAll('[data-show]');
+const closeTrigger = document.querySelectorAll('[close-btn]');
+const overlay = document.querySelector('[data-overlay]');
+
+for (let x = 0; x < menuTrigger.length; x++){
+    const closeMenu = function(){
+        mobileMenu[x].classList.remove('active');
+        overlay.classList.remove('active');
+    }
+    menuTrigger[x].addEventListener('click', function() {
+        mobileMenu[x].classList.add('active');
+        overlay.classList.add('active');
+    })
+    closeTrigger[x].addEventListener('click', closeMenu);
+    overlay.addEventListener('click', closeMenu)
+}
\ No newline at end of file
diff --git a/donation_website/style.css b/donation_website/style.css
index 37bc97a..f8a7f98 100644
--- a/donation_website/style.css
+++ b/donation_website/style.css
@@ -102,6 +102,10 @@ header li a:hover{
     color: #D22B2B;
     cursor: pointer;
 }
+
+.header-top, .header-main nav > ul{
+    display: none;
+}
 /*-------- header-main ---------*/
 .header-main .container .wrap .logo img{
     width: 60px;
@@ -143,10 +147,118 @@ header li a:hover{
 .header-main :where(nav > ul > li >a span, .logo){
     font-weight: 600;
 }
+/*---------- mobile menu ----------*/
+.overlay{
+    position: fixed;
+    top: 0;
+    left: 0;
+    width: 100%;
+    height: 100vh;
+    background-color: rgb(0 0 0 /50%);
+    pointer-events: none;
+    z-index: 15px;
+    transition: 0.5s ease;
+    opacity: 0;
+}
+.overlay.active{
+    opacity: 1;
+    pointer-events: all;
+}
+nav.mobile{
+    position: fixed;
+    top: 0;
+    left: 0;
+    width: 350px;
+    height: 100%;
+    max-width: calc(100vw -60px);
+    padding: 30px;
+    background-color: whitesmoke;
+    z-index: 1000;
+    display: flex;
+    flex-direction: column;
+    left: -100%;
+    visibility: hidden;
+    transition: 0.5s ease;
+}
+nav.mobile.active{
+    left: 0;
+    visibility: visible;
+}
+nav.mobile > ul > li{
+    position: relative;
+}
+nav.mobile > ul > li > a{
+    position: relative;
+    display: block;
+    padding: 13px 0;
+}
+.close-trigger{
+    font-size: 22px;
+    width: 40px;
+    height: 40px;
+    line-height: 40px;
+    text-align: center;
+    transition: color 0.3s;
+}
+.close-trigger:hover{
+    color: #D22B2B;
+}
+nav.mobile .close-trigger{
+    position: absolute;
+    right: -40px;
+    top: 0;
+}
+nav.mobile > ul{
+    overflow-y: auto;
+    margin-bottom: 30px;
+}
+nav.mobile > ul >li > span{
+    position: absolute;
+    right: 0;
+    top: 0;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 40px;
+    height: 55px;
+    font-size: 22px;
+    cursor: pointer;
+    transition: color 0.3s;
+}
+nav.mobile > ul >li > span:hover{
+    color: #D22B2B;
+}
+nav.mobile .submenu{
+    height: 0;
+    overflow: hidden;
+}
+nav.mobile .submenu a{
+    color: #E34234;
+    padding-left: 15px;
+    transition: color 0.3s;
+}
+nav.mobile .submenu a:hover{
+    color: black;
+}
+
+
+
+
+
+
+
+
+
 
 
 
 @media only screen and (min-width:992px){
+    .header-main nav > ul{
+        display: flex;
+    }
+    .header-top{
+        display: block;
+    }
     .header-main .menu-trigger{
     display: none;
     }