#start_page {
  margin: 0;
  position: fixed;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
  z-index: 10000000;
  background-color: #263040 !important;
}
#start_page_img {
  width: 350px;
  height: auto;
}