:root{--moving-box-width: 100px}.container.svelte-wc4ony{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:300px}.box-container.svelte-wc4ony{box-sizing:content-box;padding:0;width:calc(var(--moving-box-width) + 200px);height:calc(var(--moving-box-width));position:relative}.moving-box.svelte-wc4ony{width:var(--moving-box-width);height:var(--moving-box-width);background-color:red;position:absolute;left:0;top:0}