*{box-sizing:border-box;margin:0;padding:0}body{color:#222;background:#f5f7fa;padding:40px;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}header{background:bisque fixed;border-radius:10px;justify-items:center;width:100%;height:fit-content}#btn-random{color:#f0f8ff;width:120px;height:50px;font:700;background-color:#0936ca;border:10px;border-radius:9px;justify-content:center;justify-self:center;align-items:center;margin:50px;padding:9px;font-family:Impact,Haettenschweiler,Arial Narrow Bold,sans-serif;display:inline-flex}#btn-random:hover{cursor:pointer;transform:scale(2)}#output{font-size:3rem}