Improve rendering of TOC dropdown

assets/scss/components/_toc.scss

@@ -50,6 +50,9 @@
 
 #toc-collapse {
     border-color: var(--bs-secondary-color) !important;
+    border-radius: 0 0 var(--bs-border-radius) var(--bs-border-radius) !important;
+    margin-top: -1.5rem;
+    padding-top: 1.5rem !important;
 }
 
 .toc-button {
@@ -60,6 +63,8 @@
     --bs-btn-active-bg: var(--bs-body-bg);
     --bs-btn-active-border-color: var(--bs-primary);
 
+    background-color: var(--#{$prefix}body-bg) !important;
+
     &.active,
     &:hover,
     &:focus {

layouts/partials/assets/toc-dropdown.html

@@ -26,15 +26,14 @@
             "icon" "fas sort"
             "justify" "between"
             "collapse" "toc-collapse"
-            "order" "last") 
-        -}}
+            "order" "last"
+            "spacing" false
+        ) -}}
     </div>
 
-    <p>
     <div class="collapse border bg-body-tertiary rounded p-1 navbar-nav-scroll" id="toc-collapse">
         <div class="toc toc-panel text-body p-2">
             <small>{{ $page.TableOfContents }}</small>
         </div>
     </div>
-    </p>
 {{ end -}}

layouts/partials/assets/toc.html

@@ -18,6 +18,6 @@
 
 <!-- Main code -->
 {{ if and (not $error) (gt $items 1) -}}
-    <strong class="d-block h6 my-2 pb-2 border-bottom">{{ T "toc" }}</strong>
+    <strong class="d-block h6 my-2 pb-2">{{ T "toc" }}:</strong>
     {{ $page.TableOfContents }}
 {{ end -}}