css fixes, dropdown fixes

scss/ui/typo/_hr.scss

@@ -16,19 +16,19 @@ Hr text
   @include subheader;
   line-height: 1rem;
 
-  &::after,
-  &::before {
+  &:after,
+  &:before {
     flex: 1 1 auto;
     height: $hr-height;
     background-color: currentColor;
     opacity: $hr-opacity;
   }
 
-  &::before {
+  &:before {
     margin-right: .5rem;
   }
 
-  &::after {
+  &:after {
     content: "";
     margin-left: .5rem;
   }
@@ -40,7 +40,7 @@ Hr text
   }
 
   &.hr-text-center {
-    &::before {
+    &:before {
       content: "";
     }
 
@@ -51,11 +51,11 @@ Hr text
   }
 
   &.hr-text-right {
-    &::before {
+    &:before {
       content: "";
     }
 
-    &::after {
+    &:after {
       content: none;
     }