fix test logic

public/css/bootstrap.css

@@ -37,14 +37,14 @@
   display: none;
 }
 
-#bootstrap-screen > section {
+#bootstrap-screen > .bootstrap-card {
   width: min(100%, 42rem);
   box-sizing: border-box;
   padding: clamp(1.1rem, 4vw, 1.8rem);
   border: 1px solid rgb(214 224 214 / 80%);
   border-radius: clamp(1.4rem, 5vw, 2rem);
   box-shadow: var(--bootstrap-shadow);
-  background: rgb(255 255 255 / 96%);
+  background: var(--bootstrap-card-bg);
 }
 
 .bootstrap-brand {
@@ -305,7 +305,7 @@
     padding-left: max(.75rem, env(safe-area-inset-left));
   }
 
-  #bootstrap-screen > section {
+  #bootstrap-screen > .bootstrap-card {
     padding: 1rem;
   }