* {
        box-sizing: border-box;
      }
      body {
       background-color: skyblue;
        font-family: Arial, sans-serif;
        margin: 0;
        padding: 0;
      }
      .container {
        display: flex;
        flex-direction: column;
        align-items: center;
        margin-top: 50px;
      }
      .levels {
        display: flex;
        justify-content: center;
        width: 100%;
        margin-bottom: 20px;
      }
      .level-button {
        background-color: lightblue;
        border: none;
        padding: 10px 20px;
        margin: 10px;
        border-radius: 50px;
        cursor: pointer;
        width: 150px;
        text-align: center;
        font-size: 18px;
        font-weight: bold;
        color: black; 
        box-shadow: 0px 5px 10px 0px rgba(0,0,0,0.3);
        transition: all 0.3s ease;
      }
      .level-button:hover {
        transform: translateY(-5px);
        box-shadow: 0px 15px 20px 0px rgba(0,0,0,0.5);
      }
      .settings-button {
        background-color: lightgray;
        border: none;
        padding: 10px 20px;
        margin-top: 20px;
        border-radius: 50px;
        cursor: pointer;
        width: 150px;
        text-align: center;
        font-size: 18px;
        font-weight: bold;
        color: black;
        box-shadow: 0px 5px 10px 0px rgba(0,0,0,0.3);
        transition: all 0.3s ease;
      }
      .settings-button:hover {
        transform: translateY(-5px);
        box-shadow: 0px 15px 20px 0px rgba(0,0,0,0.5);
      }
      @media (max-width: 500px) {
        .level-button {
          width: 120px;
        }
        .settings-button {
          width: 120px;
        }
      }
        .time-attack {
        font-size: 20px;
        font-weight: bold;
        margin-top: 20px;
        color: lightblue;
        text-align:center;
      }