.App{text-align:center}.App h1{font-size:x-large;font-weight:bolder}.buttons{display:flex;gap:10px;justify-content:center}.stop-btn{border:1px solid red;padding:5px;margin-top:50px;width:100px}.stop-btn:hover{background-color:maroon;color:#fff}.start-btn{border:1px solid green;padding:5px;margin-top:50px;width:100px}.start-btn:hover{background-color:#adff2f;color:red}.traffic-container{width:100px;height:350px;background-color:#000;position:absolute;left:50%;transform:translate(-50%,-50%);top:50%;border-radius:10px;display:flex;flex-direction:column;justify-content:space-evenly;align-items:center}.traffic-signal{border-radius:50%;height:85px;width:85px;margin:5px}