diff --git a/browser/devtools/animationinspector/animation-inspector.xhtml b/browser/devtools/animationinspector/animation-inspector.xhtml
index 7637f4b47c9c7..2dfa4118e4d2c 100644
--- a/browser/devtools/animationinspector/animation-inspector.xhtml
+++ b/browser/devtools/animationinspector/animation-inspector.xhtml
@@ -19,7 +19,7 @@
       <span class="label">&allAnimations;</span>
       <button id="toggle-all" standalone="true" class="devtools-button"></button>
     </div>
-    <div id="players" class="theme-toolbar"></div>
+    <div id="players"></div>
     <div id="error-message">
       <p>&invalidElement;</p>
       <p>&selectElement;</p>
diff --git a/browser/themes/shared/devtools/animationinspector.css b/browser/themes/shared/devtools/animationinspector.css
index 289596029f49c..b4eb77641cd9d 100644
--- a/browser/themes/shared/devtools/animationinspector.css
+++ b/browser/themes/shared/devtools/animationinspector.css
@@ -28,7 +28,7 @@ body {
 }
 
 #toggle-all {
-  border-width: 0px 1px;
+  border-width: 0 0 0 1px;
   min-height: 20px;
 }