html,
body,
#content,
.image-container {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
}

#content {
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-container {
  background-position: center center;
  background-repeat: no-repeat;
  background-size: contain;
}

.full-width {
  width: 100% !important;
}

.full-height {
  height: 100% !important;
}