html, body {
  overflow: hidden;
  height: 100%;
}

body {
  font: 14px Roboto, Helvetica Neue Light, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;
  color: #666;
  background: #F1F1F1;
  line-height: 1.5;
  margin: 0;
  padding: 0;
}

.App {
  color: #fff;
}

.App-header {
  display: flex;
  align-items: center;
  flex-direction: column;
  padding: 20px 0;
  background: #2196f3;

  .App-logo {
    width: 150px;
  }
}

.App-intro {
  padding: 20px 0;
  text-align: center;
  color: #333;
}

.App-btn {
  text-align: center;

  .bm-Button {
    margin-right: 15px;
  }
}