fix random broken styles

client/assets/styles/footer.less

@@ -3,6 +3,7 @@ footer {
     flex-flow: row wrap;
     grid-area: footer;
     margin: 0;
+    z-index: 10;
 
     button {
         margin: 0;

client/assets/styles/game.less

@@ -123,7 +123,6 @@
         button {
             width: 100%;
             height: 2em;
-            height: 25%;
             margin-right: 1em;
         }
         button.active {

client/assets/styles/styles.less

@@ -14,7 +14,7 @@ html body {
     -ms-user-select: none;
 
     overflow-x: hidden;
-    // overflow-y: hidden;
+    overflow-y: hidden;
 }
 
 #mnml {
@@ -26,7 +26,7 @@ html body {
 
     /* stops inspector going skitz*/
     overflow-x: hidden;
-    // overflow-y: hidden;
+    overflow-y: hidden;
 }
 
 // @media (min-width: 1921px) {