Fix background colours on big numbers without links

app/assets/stylesheets/components/big-number.scss

@@ -45,7 +45,8 @@
   .big-number {
     padding: $gutter-half;
     position: relative;
-    cursor: pointer;
+    background: $black;
+    color: $white;
   }
 
   .big-number-label {
@@ -69,7 +70,13 @@
     margin-bottom: 5px;
 
     &:hover {
+
       color: $light-blue-25;
+
+      .big-number {
+        color: $light-blue-25;
+      }
+
     }
 
     &:active,
@@ -77,6 +84,10 @@
       outline: 3px solid $yellow;
     }
 
+    .big-number {
+      background: transparent;
+    }
+
     .big-number-label {
       text-decoration: underline;
     }

app/templates/views/platform-admin.html

@@ -22,8 +22,8 @@
   ]) }}
 
 
-  <h2 class='heading-medium'>Today's statistics</h2>
-  <div class="grid-row">
+  <h2 class='heading-medium'>Today</h2>
+  <div class="grid-row bottom-gutter">
     <div class="column-half">
       {{ big_number_with_status(
         global_stats.emails_delivered,

tests/app/main/views/test_platform_admin.py

@@ -43,7 +43,7 @@ def test_should_render_platform_admin_page(
             assert response.status_code == 200
             resp_data = response.get_data(as_text=True)
             assert 'Platform admin' in resp_data
-            assert 'Today\'s statistics' in resp_data
+            assert 'Today' in resp_data
             assert 'Services' in resp_data