ui/src/assets/panel_container.scss

// Copyright (C) 2023 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

.panel-container {
  position: relative;
  // display: grid;
  // grid-template-columns: 1fr;
  // grid-template-rows: 1fr;
  // grid-template-areas: "space";
}

// In the scrolling case, since the canvas is overdrawn and continuously
// repositioned, we need the canvas to be in a div with overflow hidden and
// height equaling the total height of the content to prevent scrolling
// height from growing.
.scroll-limiter {
  position: absolute;
  top: 0;
  left: 0;
  overflow: hidden;
  height: 100%;
}

canvas.main-canvas {
  z-index: -1;
}

.panels {
  position: relative;
  user-select: none;
}

.panel {
  position: relative; // Otherwise canvas covers panel dom.

  &.sticky {
    position: sticky;
    z-index: 3;
    top: 0;
    background-color: hsl(215, 22%, 19%);
  }
}