Issue #3224466 by andy-blum, mherchel: Olivero: <button> elements are not inheriting theme's font

core/themes/olivero/css/base/base.css

@@ -55,6 +55,10 @@ a:focus {
     outline-offset: 2px;
   }
 
+button {
+  font-family: inherit;
+}
+
 img,
 video {
   display: block;

core/themes/olivero/css/base/base.pcss.css

@@ -50,6 +50,10 @@ a {
   }
 }
 
+button {
+  font-family: inherit;
+}
+
 img,
 video {
   display: block;