html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: sans-serif;
  background-color: #ffffff;
  display: flex;
  flex-direction: column;
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

.logo-container {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

.logo-container img {
  max-width: 300px;
  height: auto;
  -webkit-user-drag: none;
  pointer-events: auto;
}

footer {
  text-align: center;
  padding: 20px;
}

footer img {
  width: 100px;
  height: auto;
  user-select: none;
  -webkit-user-drag: none;
  pointer-events: auto;
}

footer a:hover img {
  opacity: 0.8;
  transition: opacity 0.2s ease-in-out;
}