diff --git a/themes/metro/scss/_breadcrumbs.scss b/themes/metro/scss/_breadcrumbs.scss
index c686e277c1..cf84fea253 100644
--- a/themes/metro/scss/_breadcrumbs.scss
+++ b/themes/metro/scss/_breadcrumbs.scss
@@ -18,6 +18,7 @@
     font-family: "IcoMoon";
     font-size: 10px;
     color: #eee;
+    /* The arrow */
     content: "";
   }
 
diff --git a/themes/metro/scss/_common.scss b/themes/metro/scss/_common.scss
index 770cfe34f5..8009aa1173 100644
--- a/themes/metro/scss/_common.scss
+++ b/themes/metro/scss/_common.scss
@@ -43,6 +43,7 @@ body#loginform {
       font-family: 'IcoMoon';
       font-size: 220px;
       color: $body-bg;
+      /* The user avatar icon */
       content: "a";
       float: $left;
       margin-#{$right}: 20px;
@@ -919,6 +920,7 @@ fieldset.caution li {
   &::before {
     /* stylelint-disable-next-line font-family-no-missing-generic-family-keyword */
     font-family: "IcoMoon";
+    /* Round crossed (x) */
     content: "";
     color: $button-color;
     margin-#{$right}: 10px;