WEB: Restore website width and improve table of contents style (#61593)

Author: datapythonista

web/pandas/static/css/pandas.css

@@ -106,23 +106,22 @@ blockquote {
     color: #787878;
     font-size: 18px;
  }
-
 .toc {
-    background: #f0f0f0;
-    padding: 10px;
+    background: #f9f9f9;
+    padding: 1em;
+    border: 0.1em solid darkgrey;
+    border-radius: 0.4em;
     display: inline-block;
+    margin: 1em 0;
+}
+.toc .toctitle {
+    font-weight: bold;
+    padding-bottom: 1em;
 }
 a.headerlink {
     opacity: 0;
 }
-h2:hover a.headerlink {
-    opacity: 1;
-    transition: opacity 0.5s;
-}
-h3:hover a.headerlink {
+h2:hover a.headerlink, h3:hover a.headerlink {
     opacity: 1;
     transition: opacity 0.5s;
 }
-.container {
-    max-width: 100ch;
-}