*{
    box-sizing: border-box;
}
header h1{
    color: var(--bs-white);
}
#container{
    opacity: 0;
    background-color: var(--bs-gray-100);
}
.imgBox{
    width: 100%;
    height: 0;
    padding-bottom: 100%;
    background-position: center;
    background-size: cover;
    overflow: hidden;
}
@include media-breakpoint-only(xs) {
    .btn-block-xs-only {
      display: block;
      width: 100%;
    }
  }