Bug 1569328 - Update sort select styling to be closer to the spec. r=jaws

Differential Revision: https://phabricator.services.mozilla.com/D39569

--HG--
extra : moz-landing-system : lando

browser/components/aboutlogins/content/components/login-list.css

@@ -17,11 +17,13 @@
   border-bottom: 1px solid var(--in-content-box-border-color);
   background-color: var(--in-content-box-background);
   color: var(--in-content-deemphasized-text);
+  font-size: 0.8em;
 }
 
 #login-sort {
+  background-color: transparent;
+  padding-inline-start: 0;
   min-height: initial;
-  line-height: 1.1;
   font: inherit;
   font-weight: 600;
   color: var(--in-content-text-color) !important;
@@ -34,7 +36,6 @@
 .count {
   flex-grow: 1;
   text-align: end;
-  font-size: smaller;
   margin-inline-start: 18px;
 }