Hide the ref badge from RTD's version selector

_static/css/custom.css

@@ -344,6 +344,11 @@ a[href*="classes/"]::before {
     display: none;
 }
 
+/* Prevent the "ref" badge from appearing on Read the Docs inside of the version selector. */
+.rst-versions a[href*="classes/"]::before {
+    display: none;
+}
+
 hr,
 #search-results .search li:first-child,
 #search-results .search li {
@@ -1031,6 +1036,21 @@ kbd.compound > .kbd,
     background-color: var(--navbar-current-background-color);
 }
 
+.rst-versions.shift-up {
+    overflow: visible;
+}
+
+.rst-versions.shift-up:before {
+    content: '';
+    position: absolute;
+    left: 0;
+    top: -8px;
+    width: 100%;
+    height: 8px;
+    pointer-events: none;
+    background: linear-gradient(transparent, hsla(0, 0%, 0%, 0.2));
+}
+
 @media only screen and (min-width: 769px) {
     .rst-versions {
         /* Required to center the page on wide displays */