added tiny improvements

Author: MattMoony

index.html

@@ -46,6 +46,7 @@
             display: block;
             position: fixed;
             right: 30px; top: 150px;
+            background-color: rgba(255,255,255,0.75);
 
             font-family: 'Quicksand';
             font-weight: bold;
@@ -58,6 +59,7 @@
 
         #algorithm_settings {
             border-left: 1.5px solid dimgray;
+            background-color: rgba(255,255,255,0.75);
             display: block;
             position: fixed;
             left: 25px; top: 350px;