index.css

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 * ┃  *  Copyright (c) 2026, the Regular Layout Authors. This file is part  *  ┃
 * ┃  *  of the Regular Layout library, distributed under the terms of the  *  ┃
 * ┃  *  [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). *  ┃
 * ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
 */

body {
    margin: 0px;
    font-family: "ui-monospace", "SFMono-Regular", "SF Mono", "Menlo", "Consolas", "Liberation Mono", monospace;
}

header {
    padding: 0 12px;
    gap: 12px;
    display: flex;
    align-items: center;
    height: 36px;
}

/* Layout */
regular-layout {
    overflow: hidden;
    position: absolute;
    top: 36px;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 3px;
    /* padding: 12px; */

    /* 
        `regular-layout` supports the CSS `gap` property, but the "absolute"
        mode overlay will not respect it (because there is no `gap` positioning
        for absolutely positioned elements), leading to slightly off-center
        drag/drop overlays. As "absolute" mode is required for CSS transitions
        to work (making the smooth animation), you will need to use `margin`
        instead of `gap` if you want smooth overlay animations _and_ correctly
        positioned overlays.
    */
        
    /* margin: 3px; */
    /* gap: 6px; */
}

/* Frame */
regular-layout-frame {
    position: relative;
    box-sizing: border-box;
}