Contextual module marks added

Fully functional, pretty much the same as the old ones, except for some color changes.

dist/mini-default.css

@@ -1270,3 +1270,44 @@ footer.sticky {
     display: none;
   }
 }
+
+/*
+  Definitions for contextual background elements, toasts and tooltips.
+*/
+/* Contextual module CSS variable definitions */
+:root {
+  --mark-back-color: #0277bd;
+  --mark-fore-color: #fafafa;
+}
+
+mark {
+  background: var(--mark-back-color);
+  color: var(--mark-fore-color);
+  font-size: 0.95em;
+  line-height: 1em;
+  border-radius: var(--universal-border-radius);
+  padding: calc(var(--universal-padding) / 4) calc(var(--universal-padding) / 2);
+}
+
+mark.inline-block {
+  display: inline-block;
+  font-size: 1em;
+  line-height: 1.5;
+  padding: calc(var(--universal-padding) / 2) var(--universal-padding);
+}
+
+/*
+  Custom elements for contextual background elements, toasts and tooltips.
+*/
+mark.secondary {
+  --mark-back-color: #d32f2f;
+}
+
+mark.tertiary {
+  --mark-back-color: #308732;
+}
+
+mark.tag {
+  padding: calc(var(--universal-padding)/2) var(--universal-padding);
+  border-radius: 1em;
+}