1 files changed, 96 insertions, 0 deletions
diff --git a/app/assets/stylesheets/page_bundles/merge_requests.scss b/app/assets/stylesheets/page_bundles/merge_requests.scss
new file mode 100644
index 00000000000..5553dffac05
--- /dev/null
+++ b/app/assets/stylesheets/page_bundles/merge_requests.scss
@@ -0,0 +1,96 @@
+@import 'mixins_and_variables_and_functions';
+
+.compare-versions-container {
+  min-width: 0;
+}
+
+.diff-files-holder {
+  flex: 1;
+  min-width: 0;
+  z-index: 201;
+}
+
+.diff-tree-list {
+  position: -webkit-sticky;
+  position: sticky;
+  $top-pos: $header-height + $mr-tabs-height + $mr-version-controls-height + 15px;
+  top: $top-pos;
+  max-height: calc(100vh - #{$top-pos});
+  z-index: 202;
+
+  .with-system-header & {
+    top: $top-pos + $system-header-height;
+  }
+
+  .with-system-header.with-performance-bar & {
+    top: $top-pos + $system-header-height + $performance-bar-height;
+  }
+
+  .with-performance-bar & {
+    $performance-bar-top-pos: $performance-bar-height + $top-pos;
+    top: $performance-bar-top-pos;
+    max-height: calc(100vh - #{$performance-bar-top-pos});
+  }
+
+  .drag-handle {
+    bottom: 16px;
+    transform: translateX(10px);
+  }
+}
+
+.tree-list-holder {
+  height: 100%;
+
+  .file-row {
+    margin-left: 0;
+    margin-right: 0;
+  }
+}
+
+.tree-list-scroll {
+  max-height: 100%;
+  padding-bottom: $grid-size;
+  overflow-y: scroll;
+  overflow-x: auto;
+}
+
+.tree-list-search {
+  flex: 0 0 34px;
+
+  .form-control {
+    padding-left: 30px;
+  }
+}
+
+.tree-list-icon {
+  top: 50%;
+  left: 10px;
+  transform: translateY(-50%);
+
+  &,
+  svg {
+    fill: var(--gray-400, $gray-400);
+  }
+}
+
+.tree-list-clear-icon {
+  right: 10px;
+  left: auto;
+  line-height: 0;
+}
+
+@media (max-width: map-get($grid-breakpoints, md)-1) {
+  .diffs .files {
+    .diff-tree-list {
+      position: relative;
+      top: 0;
+      // !important is required to override inline styles of resizable sidebar
+      width: 100% !important;
+    }
+
+    .tree-list-holder {
+      max-height: calc(50px + 50vh);
+      padding-right: 0;
+    }
+  }
+}