horizontal.accordion/horizontal.accordion.left.css

```javascript window.Math.randomRange(min, max); window.Number.prototype.toRad(); window.Math.calculateDistance(lat1, lon1, lat2, lon2); ```

:root {
    --horizontal-accordion-left-height: 4vmin;
}
horizontal-accordion-left {
    position: fixed;
    left: 0;
    top: calc(50vh - var(--horizontal-accordion-left-height) / 2);
    height: var(--horizontal-accordion-left-height);
    width: var(--horizontal-accordion-left-height);
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: nowrap;
    z-index: 9999;
    cursor: pointer;
    transition: opacity 0.2s;
    opacity: 1;
}
horizontal-accordion-left:active {
    opacity: 0.5;
}
horizontal-accordion-left > * {
    height: calc(var(--horizontal-accordion-left-height) / 2);
    width: calc(var(--horizontal-accordion-left-height) / 2);
}