added scrollbar to posts

res/forum/style.css

@@ -21,6 +21,32 @@ body
     border-radius: 0.4vh 0.4vh;
 
     margin-top: 1.5vh;
+    overflow-y: auto;
+}
+
+::-webkit-scrollbar
+{
+    width: 0.75vh;
+}
+
+::-webkit-scrollbar-track
+{
+    background-color: #C1BFBE;
+}
+
+::-webkit-scrollbar-thumb
+{
+    background-color: #888;
+}
+
+::-webkit-scrollbar-thumb, ::-webkit-scrollbar-track
+{
+    border-radius: 5vh 5vh;
+}
+
+::-webkit-scrollbar-thumb:hover
+{
+    background-color: #555;
 }
 
 #upper_panel