body {
  text-align: center;
  background: #fff;
  color: #000;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  min-height: calc(100vh - 1px);
  background: rgb(58,77,132);
  background: linear-gradient(45deg, rgba(58,77,132,1) 0%, rgba(99,115,160,1) 100%);
}
/* Responsive */
@media only screen and (orientation : portrait) {
  #logo_container {
    width: 100%;
  }
  #logo_container img {
    width: 75%;
    height: auto!important;
  }
}