Add invisible bridge to dropdown menu for easier hovering

Author: sylvestre

static/style.css

@@ -170,6 +170,15 @@ header a:hover:not(.home) {
   border-bottom: 2px solid var(--link-text-color);
 }
 
+.dropdown-menu::before {
+  content: "";
+  position: absolute;
+  bottom: 100%;
+  left: 0;
+  right: 0;
+  height: 0.75rem;
+}
+
 .dropdown-menu {
   display: none;
   position: absolute;