[fix] do not use fullpage.js

resources/css/style.css

@@ -1,28 +1,9 @@
 body {
-    overflow-x: hidden;
     font-size: 18px;
-    position: relative;
-    min-height: 100vh;
-}
-
-html, body {
     height: 100%;
-    width: 100%;
     background-color: #FFF;
 }
 
-body {
-    position: relative;
-    min-height: 100vh;
-}
-
-body::after {
-    content: '';
-    display: block;
-    height: 220px;
-    /* Set same as footer's height */
-}
-
 /*-------- Navbar --------*/
 
 .navbar .nav-link {
@@ -52,6 +33,15 @@ body::after {
     color: #000 !important; 
 }
 
+#overview {
+    min-height: 100%;
+}
+
+#leaderboard {
+    background-color: #FAFAFA;
+    min-height: 800px;
+}
+
 .project-tab #tabs{
     background: #007b5e;
     border: 1px solid transparent;
@@ -114,7 +104,7 @@ body::after {
 }
 
 .subfooter {
-    position: absolute;
+    /* position: absolute; */
     bottom: 60px;
     width: 100%;
     height: 160px;
@@ -159,7 +149,7 @@ body::after {
 }
 
 .footer {
-    position: absolute;
+    /* position: absolute; */
     bottom: 0;
     width: 100%;
     height: 60px;