body {
        background-color: black;
      }

      .calculations-display {
        font-size: 40px;
        margin-bottom: 10px;
        font-weight: 400;
        color: white;
      }
      button {
        height: 60px;
        width: 60px;
        border-radius: 39px;
        border: none;
        background-color: rgb(51, 51, 51);
        color: white;
        cursor: pointer;
        font-size: 26px;
        margin-right: 5px;
      }

      .yellow-button {
        background-color: orange;
      }
      .clear-button {
        font-size: 16px;
      }