.header {
    background-color: #fff;
    margin: 0;
    width: 100% !important;

    display: flex;
    flex-direction: column;
    justify-content: center;
}
@media only screen and (min-width: 981px) {
	.header {
      background-color: #fff;
    margin: 0;
    width: 100% !important;
    display: flex;
    flex-direction: column;
    justify-content: center;
      min-height:90%;
  }
}