*, *:before, *:after {
    box-sizing: border-box;
  }

  body {
      margin:0;
    min-height: 100vh;
  }

  .center {
    position: absolute;
    width: 400px;
    height: 400px;
    top: 50%;
    left: 50%;
    margin-left: -200px;
    margin-top: -200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 30px;
    color: #333;
  }
  .center input {
    width: 100%;
    padding: 15px;
    margin: 5px;
    border-radius: 1px;
    border: 1px solid rgb(90, 90, 90);
    font-family: inherit;
    background-color: #eae9ea;
  }