diff --git a/addons/mass_mailing/static/src/snippets/s_alert/000.scss b/addons/mass_mailing/static/src/snippets/s_alert/000.scss
index 7b6988a4063..7675235e36a 100644
--- a/addons/mass_mailing/static/src/snippets/s_alert/000.scss
+++ b/addons/mass_mailing/static/src/snippets/s_alert/000.scss
@@ -9,20 +9,23 @@
             margin-bottom: 0;
         }
     }
-    &_sm {
+    &.s_alert_sm {
         padding: $grid-gutter-width/3;
         font-size: $font-size-sm;
     }
-    &_md {
+    &.s_alert_md {
         padding: $grid-gutter-width/2;
         font-size: $font-size-base;
     }
-    &_lg {
+    &.s_alert_lg {
         padding: $grid-gutter-width;
         font-size: $font-size-lg;
     }
-    &_icon {
+    .s_alert_icon {
         float: left;
         margin-right: 10px;
     }
+    .s_alert_content {
+        overflow: hidden;
+    }
 }
diff --git a/addons/mass_mailing/static/src/snippets/s_features_grid/000.scss b/addons/mass_mailing/static/src/snippets/s_features_grid/000.scss
index 7e1343c4f92..11323decaac 100644
--- a/addons/mass_mailing/static/src/snippets/s_features_grid/000.scss
+++ b/addons/mass_mailing/static/src/snippets/s_features_grid/000.scss
@@ -1,12 +1,12 @@
 
 .s_mail_features_grid {
-    &_content {
+    .s_mail_features_grid_content {
         overflow: hidden;
         p {
             margin-bottom: 0;
         }
     }
-    &_icon {
+    .s_mail_features_grid_icon {
         float: left;
     }
 }
diff --git a/addons/website/static/src/snippets/s_alert/000.scss b/addons/website/static/src/snippets/s_alert/000.scss
index a44d1d2db66..11522e163e9 100644
--- a/addons/website/static/src/snippets/s_alert/000.scss
+++ b/addons/website/static/src/snippets/s_alert/000.scss
@@ -8,23 +8,23 @@
             margin-bottom: 0;
         }
     }
-    &_sm {
+    &.s_alert_sm {
         padding: $grid-gutter-width/3;
         font-size: $font-size-sm;
     }
-    &_md {
+    &.s_alert_md {
         padding: $grid-gutter-width/2;
         font-size: $font-size-base;
     }
-    &_lg {
+    &.s_alert_lg {
         padding: $grid-gutter-width;
         font-size: $font-size-lg;
     }
-    &_icon {
+    .s_alert_icon {
         float: left;
         margin-right: 10px;
     }
-    &_content {
+    .s_alert_content {
         overflow: hidden;
     }
 }
diff --git a/addons/website/static/src/snippets/s_features_grid/000.scss b/addons/website/static/src/snippets/s_features_grid/000.scss
index d66d72c5932..358f4bed29f 100644
--- a/addons/website/static/src/snippets/s_features_grid/000.scss
+++ b/addons/website/static/src/snippets/s_features_grid/000.scss
@@ -1,12 +1,12 @@
 
 .s_features_grid {
-    &_content {
+    .s_features_grid_content {
         overflow: hidden;
         p {
             margin-bottom: 0;
         }
     }
-    &_icon {
+    .s_features_grid_icon {
         float: left;
         margin-right: $grid-gutter-width/2;
     }