Fix unsupported syntax

site/assets/scss/_custom.scss

@@ -17,7 +17,7 @@ details {
     max-width: 80%;
 }
 
-@media (max-width: 991px) {
+@media (width <= 991px) {
     details {
         max-width: 100% !important;
     }
@@ -42,7 +42,7 @@ details > .code-toolbar {
 }
 
 /* Increased left padding on the sidebar of documentation */
-
+/* stylelint-disable-next-line selector-class-pattern */
 .td-sidebar-nav__section .ul-1 ul {
     padding-left: 0.6rem !important;
     padding-right: 0.1rem !important;
@@ -120,36 +120,36 @@ details > .code-toolbar {
     max-height: 27px;
 }
 
-@media (max-width: 1680px) {
+@media (width <= 1680px) {
     #world-map-marker {
         margin-left: 25px;
     }
 }
 
-@media (max-width: 1540px) {
+@media (width <= 1540px) {
     #world-map-marker {
         margin-left: 35px;
         max-height: 25px;
     }
 }
 
-@media (max-width: 1200px) {
+@media (width <= 1200px) {
     #world-map-marker {
         margin-top: 5px;
         margin-left: 40px;
         max-height: 20px;
     }
 }
 
-@media (max-width: 992px) {
+@media (width <= 992px) {
     #world-map-marker {
         margin-top: 10px;
         margin-left: 30px;
         max-height: 15px;
     }
 }
 
-@media (max-width: 768px) {
+@media (width <= 768px) {
     #world-map-marker {
         margin-top: 15px;
         margin-left: 15px;
@@ -168,13 +168,14 @@ details > .code-toolbar {
 }
 
 /* Display version menu on mobile version of the site */
-
+/* stylelint-disable-next-line selector-id-pattern */
 #dropdown_ver {
     right: 5px !important;
     left: auto;
 }
 
-@media (min-width: 991.98px) {
+@media (width >= 991.98px) {
+    /* stylelint-disable-next-line selector-id-pattern */
     #dropdown_ver {
         right: 245px !important;
         left: auto;
@@ -184,4 +185,5 @@ details > .code-toolbar {
 /* Hide breadcrumbs, when on the root level
    https://github.com/google/docsy/issues/944
 */
+/* stylelint-disable-next-line selector-class-pattern */
 .td-breadcrumbs__single { display: none !important; }