diff --git a/web/viewer-geckoview.css b/web/viewer-geckoview.css
index 768091687..9385c5cf1 100644
--- a/web/viewer-geckoview.css
+++ b/web/viewer-geckoview.css
@@ -245,64 +245,3 @@ dialog :link {
 @page {
   margin: 0;
 }
-
-.visibleLargeView,
-.visibleMediumView {
-  display: none;
-}
-
-@media all and (max-width: 900px) {
-  #toolbarViewerMiddle {
-    display: table;
-    margin: auto;
-    left: auto;
-    position: inherit;
-    transform: none;
-  }
-}
-
-@media all and (max-width: 840px) {
-  #sidebarContainer {
-    background-color: var(--sidebar-narrow-bg-color);
-  }
-  #outerContainer.sidebarOpen #viewerContainer {
-    inset-inline-start: 0 !important;
-  }
-}
-
-@media all and (max-width: 820px) {
-  #outerContainer .hiddenLargeView {
-    display: none;
-  }
-  #outerContainer .visibleLargeView {
-    display: inherit;
-  }
-}
-
-@media all and (max-width: 750px) {
-  #outerContainer .hiddenMediumView {
-    display: none;
-  }
-  #outerContainer .visibleMediumView {
-    display: inherit;
-  }
-}
-
-@media all and (max-width: 690px) {
-  .hiddenSmallView,
-  .hiddenSmallView * {
-    display: none;
-  }
-  .toolbarButtonSpacer {
-    width: 0;
-  }
-  .findbar {
-    inset-inline-start: 34px;
-  }
-}
-
-@media all and (max-width: 560px) {
-  #scaleSelectContainer {
-    display: none;
-  }
-}