add hr, update cover colors

index.html

@@ -171,6 +171,7 @@
                         </div>
                     </div>
                 </section>
+                <hr />
             </div>
         </div>
         <script src="script.js"></script>

style.css

@@ -52,7 +52,8 @@ p {
 
 .cover {
     cursor: pointer;
-    background: #000000;
+    background: #ffffff;
+    color: #ffffff;
     user-select: none;
 }
 
@@ -101,7 +102,7 @@ body {
 }
 
 #click-to-reveal-prompt {
-    color: var(--secondary);
+    color: #888888;
     position: absolute;
     top: 8px;
     left: 25%;