.custom-ui {
    text-align: center;
    width: 500px;
    padding: 40px;
    background: #28bae6;
    box-shadow: 0 20px 75px rgba(0, 0, 0, 0.23);
    color: #fff;
  }
  
  .custom-ui > button {
    width: 160px;
    padding: 10px;
    border: 1px solid #fff;
    margin: 10px;
    cursor: pointer;
    background: none;
    color: #fff;
    font-size: 14px;
  }


  div#root, .App {
    width: 100%;
    height: 100%;
    position: relative;
    display: inline-block;
    vertical-align: top;
    }

    .MuiTableCell-root {
      text-align: center !important;
    }