#splash {
  background-image: url("https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTL1qw__fSMU2xZjpO3LLv6BQwRgSDP4kgzF0PN8jxseXdVQnAtpw");
  background-size: cover;
  background-position: center;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0;
  box-sizing: border-box;
}

#buttonsInlineFlex {
  box-sizing: border-box;
}

html, body {
  padding: 0px;
  margin: 0px;
}