retrowin32/web/win2k.css

:root {
    --gray: #d6d3ce;
}

body {
    font-family: tahoma, sans-serif;
    font-size: 12px;
    background: #3a6ea5;
}

button {
    font-family: inherit;
    font-size: inherit;
}

button,
.panel {
    background: var(--gray);
    border: outset 2px;
    image-rendering: pixelated;
    border-image: url("9p-inactive.png") 2;
}

button:active {
    border: solid 2px #404040;
    border-image: url("9p-active.png") 2;
}

[popover] {
    margin: 0;
    padding: 0;
    border: 0;
    position: absolute;
    position-area: span-right span-bottom;
}

.window {
    font-size: 11px;
    position: absolute;
    min-width: 32px;
    min-height: 32px;
    box-shadow: 2px 2px 16px 4px rgba(0, 0, 0, 0.3);
    border: 2px outset;
    cursor: default;
    background: #c3c3c3;
}

.window .titlebar {
    font-weight: bold;
    background-image: linear-gradient(to right, #082468, #a0c8f0);
    color: white;
    padding: 2px 16px;
}