Cleaned up unneeded code in css

apps/explorer_web/assets/css/_utilities.scss

@@ -472,11 +472,11 @@ $padding-xs: 5px;
   }
 
   &-top {
-    border-top: 1px solid lighten($gray-300, 42%);
+    border-top: 1px solid lighten($primary, 40%);
   }
 
   &-bottom {
-    border-bottom: 1px solid lighten($gray-300, 42%);
+    border-bottom: 1px solid lighten($primary, 40%);
 
     &-bold {
       border-bottom: 2px solid lighten($gray-300, 32%);

apps/explorer_web/assets/css/components/_panels.scss

@@ -1,12 +1,16 @@
 .panels {
   @extend %paper;
 
-    &__container {
-      padding: 20px;
-    }
+  &__container {
+    padding: 20px;
   }
+}
 
-  .pagination {
-    text-align: right;
-    margin: 10px;
-  }
+.pagination {
+  text-align: right;
+  margin: 10px;
+}
+
+.monospace {
+  font-family: $font-family-monospace;
+}

apps/explorer_web/assets/css/explorer/_table.scss

@@ -1,8 +1,6 @@
 .table-font {
-  font-size: 12px;
-  color: $gray-800;
 
-  thead th, td, th, tbody+tbody {
+  thead th, td, th {
     border-top: none;
     border-bottom: none;
   }