added scroll button

index.html

@@ -75,6 +75,11 @@ <h1>Vaccine Tracker</h1>
       </div>
     </div>
 
+    <!-- Scroll Up Button -->
+    <button onclick="topFunction()" id="myBtn" title="Go to top">
+      <i class="fa fa-chevron-circle-up"></i>
+    </button>
+
     <!-- brands -->
     <div class="brands">
       <div class="small-container">
@@ -286,5 +291,33 @@ <h3>Follow Us</h3>
         }
       }
     </script>
+
+    <!-- Script for Scroll Button -->
+    <script>
+      //Get the button
+      var mybutton = document.getElementById("myBtn");
+
+      // When the user scrolls down 20px from the top of the document, show the button
+      window.onscroll = function () {
+        scrollFunction();
+      };
+
+      function scrollFunction() {
+        if (
+          document.body.scrollTop > 20 ||
+          document.documentElement.scrollTop > 20
+        ) {
+          mybutton.style.display = "block";
+        } else {
+          mybutton.style.display = "none";
+        }
+      }
+
+      // When the user clicks on the button, scroll to the top of the document
+      function topFunction() {
+        document.body.scrollTop = 0;
+        document.documentElement.scrollTop = 0;
+      }
+    </script>
   </body>
 </html>

static/style.css

@@ -237,6 +237,25 @@ ul {
 .copyright {
   text-align: center;
 }
+#myBtn {
+  display: none;
+  position: fixed;
+  bottom: 20px;
+  right: 30px;
+  z-index: 99;
+  font-size: 18px;
+  border: none;
+  outline: none;
+  background-color: rgba(14, 105, 117, 0.6);
+  color: white;
+  cursor: pointer;
+  padding: 15px;
+  border-radius: 4px;
+}
+
+#myBtn:hover {
+  background-color: #555;
+}
 
 /* --------------media query for menu------------------ */