diff --git a/src/index.php b/src/index.php
index 07b6cc4..a1342fa 100644
--- a/src/index.php
+++ b/src/index.php
@@ -25,8 +25,8 @@
             
             <article id="audfxs" style="display: none;"><details><summary>Filters</summary>
               
-              <details role="list">
-                <summary aria-haspopup="listbox">Effects</summary>
+              <details>
+                <summary>Effects</summary>
                 <ul role="listbox">
                   <li>
                     <label>
@@ -109,8 +109,8 @@
                 </ul>
               </details>
               
-              <details role="list">
-                <summary aria-haspopup="listbox">Echo</summary>
+              <details class="dropdown">
+                <summary>Echo</summary>
                 <ul role="listbox">
                   <li>
                     <label for="echo-none">