diff --git a/.scss-lint.yml b/.scss-lint.yml
index 95fbe2c80..a8223addd 100644
--- a/.scss-lint.yml
+++ b/.scss-lint.yml
@@ -85,7 +85,7 @@ linters:
         enabled: false
 
     SelectorFormat:
-        convention: hyphenated_lowercase
+        convention: hyphenated_BEM
         ignored_names:
             - js_class
         ignored_types:
diff --git a/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_dropdowns.scss b/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_dropdowns.scss
index 01e96dd05..4e135ce45 100644
--- a/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_dropdowns.scss
+++ b/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_dropdowns.scss
@@ -233,9 +233,8 @@
 // Listing view smaller dropdowns
 // =============================================================================
 
-.c-dropdown {
-
-}
+// .c-dropdown {
+// }
 
 .o-icon {
     display: inline-block;
@@ -318,9 +317,9 @@
 //  Default dropdown theme
 // =============================================================================
 
-.t-default {
+// .t-default {
 
-}
+// }
 
 .t-default .u-btn-current {
     border-color: rgba(0, 0, 0, 0.15);
@@ -380,6 +379,7 @@
     0% {
         opacity: 0;
     }
+
     100% {
         opacity: 1;
     }
diff --git a/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_forms.scss b/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_forms.scss
index b0c2fa426..6b4d42a70 100644
--- a/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_forms.scss
+++ b/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_forms.scss
@@ -472,11 +472,11 @@ button {
 }
 
 
- .button-small {
-        padding: 0 0.8em;
-        height: 2em;
-        font-size: 0.85em;
-    }
+.button-small {
+    padding: 0 0.8em;
+    height: 2em;
+    font-size: 0.85em;
+}
 
     .button-secondary {
         color: $color-button;
diff --git a/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_indicator.scss b/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_indicator.scss
index cd8e75245..bb2af009a 100644
--- a/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_indicator.scss
+++ b/wagtail/wagtailadmin/static_src/wagtailadmin/scss/components/_indicator.scss
@@ -3,10 +3,6 @@
 // =============================================================================
 
 
-.o-icon-text {
-
-}
-
 // =============================================================================
 // Indicator light
 // =============================================================================
@@ -28,10 +24,10 @@ $c-indicator-margin: .25rem;
 // States
 // =============================================================================
 
-$color-state-live: #59B524;
-$color-state-draft: grey;
-$color-state-absent: #FF8F11;
-$color-state-live-draft: #43B1B0;
+$color-state-live: #59b524;
+$color-state-draft: #808080;
+$color-state-absent: #ff8f11;
+$color-state-live-draft: #43b1b0;
 
 .is-absent .c-indicator {
     background: $color-state-absent;