html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  background-color: white;
  font-family: Arial, sans-serif;
  font-weight: bold;
  position: relative;
  overflow: hidden;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('/img/Narval_logo.png') no-repeat center center;
  background-size: contain;
  opacity: 0.1;
  z-index: 0;
}

.top-text, .bottom-text {
  position: absolute;
  width: 100%;
  text-align: center;
  z-index: 1;
}

.top-text {
  top: 35%;
  font-size: 30px;
}

.bottom-text {
  top: 85%;
  font-size: 16px;
}

a {
  color: navy;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

@media (max-width: 400px) {
  .top-text {
    font-size: 24px;
  }
  .bottom-text {
    font-size: 14px;
  }
}