body {
    background-color: #ffdaf7;
}

h1 {
    color: #181897;
    text-align: center;
    border-radius: 30px;
    background-color: #c2a8fe;
    padding: 5px;
    font-size: 50px;
}

header {
  position: fixed;
  top: 0;
  right: 0;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto;
  background-color: #ff91ae;
  font-size: 25px;
}

nav a {
  padding: 0.8rem;
  color: #9c1b1b;
}

nav a:hover {
  padding: 0.8rem;
  color: #370000;
}

a:link {
  transition: color 0.5s;
}

img {
  opacity: 0.25;
  transition: opacity 500ms;
}

img:hover {
  opacity: 1;
}

figure {
  position: relative;
}

figure img {
  position: absolute;
  top: 0;
  left: 0;
}

figure .visible {
  opacity: 1;
}

figure .hidden {
  opacity: 0;
}

figure:hover .hidden {
  opacity: 1;
}
figure:hover .visible {
  opacity: 0;
}