.flex-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.center-flex {
  /*background-color: rgb(0,0,0);*/
  /*font-weight: bold;*/
  /*border: 3px solid #f1f1f1;*/
  position: absolute;
  /*top: 50%;*/
  /*left: 50%;*/
  transform: translate(-50%, -50%);
  z-index: 2;
  width: 100%;
  /*padding: 20px;*/
  /*text-align: center;*/
}