diff --git a/css/styles.css b/css/styles.css
index b1e1e7254..b8b320957 100644
--- a/css/styles.css
+++ b/css/styles.css
@@ -71,7 +71,7 @@ tr:focus {
 }
 
 /* Default buttons */
-.mainmenu>li a {
+.mainmenu > li a {
     display: block;
     color: #e6e6e6;
     background-color: #555;
@@ -80,20 +80,20 @@ tr:focus {
 }
 
 /* Hovering makes them lighter */
-.mainmenu>li a:hover,
-.mainmenu>li a:hover:not(.active),
-.mainmenu>li a:focus {
+.mainmenu > li a:hover,
+.mainmenu > li a:hover:not(.active),
+.mainmenu > li a:focus {
     background-color: #777;
     color: #fff;
 }
 
 /* Panel headers can become active, and they are "lighter" than the rest */
-.mainmenu>li a.active {
+.mainmenu > li a.active {
     background-color: #777;
     color: #fff;
 }
 
-.mainmenu>li a.active:hover {
+.mainmenu > li a.active:hover {
     background-color: #aaa;
 }
 
diff --git a/stylelint.config.js b/stylelint.config.js
index dda50f47b..02fe66ac4 100644
--- a/stylelint.config.js
+++ b/stylelint.config.js
@@ -237,8 +237,8 @@ module.exports = {
         "selector-attribute-quotes": "always",
         "selector-class-pattern": ".+",
         //"selector-combinator-blacklist": [],
-//        "selector-combinator-space-after": "always",
-//        "selector-combinator-space-before": "always",
+        "selector-combinator-space-after": "always",
+        "selector-combinator-space-before": "always",
         //"selector-combinator-whitelist": [],
         "selector-descendant-combinator-no-non-space": true,
         "selector-id-pattern": ".+",