nav {
  text-align: left;
  font-size: 16px !important;
  line-height: 1.2;
  position: fixed;
  bottom: 4.25em;
  left: 1em;
  right: 1em;
  display: flex;
}

nav a {
  font-size: 1em;
  text-decoration: none;
  color: black;
  border: 2px solid black;
  padding: 1em;
  display: inline-block;
  border-radius: 50%;
  background-color: white;
}

nav a.previous {
  position: absolute;
  left: 1em;
}

nav a.next {
  position: absolute;
  right: 1em;
}

nav a:hover {
  background-color: rgb(186, 181, 181);
  cursor: pointer;
}

body.home a {
  font-size: 1em;
  text-decoration: none;
  color: black;
  border: 2px solid black;
  padding: 1em;
  display: inline-block;
  border-radius: 20%;
  background-color: white;
  margin-right: 0.5em;
  margin-bottom: 0.5em;
}

body.home {
  font-family: Georgia, 'Times New Roman', Times, serif;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  text-align: center;
  padding: 20px;
  box-sizing: border-box;
}

body.home a:hover {
  background-color: gray;
  cursor: pointer;
}

body.level {
  font-family: Georgia, 'Times New Roman', Times, serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  text-align: center;
  padding: 20px;
  box-sizing: border-box;
}

.content {
  max-width: 600px;
  padding: 20px;
}

button.home-button {
  margin-top: 30px;
  padding: 10px 20px;
  font-size: 1rem;
  cursor: pointer;
  background-color: #4CAF50;
  color: white;
  border: none;
  border-radius: 5px;
}

button.home-button:hover {
  background-color: #45a049;
}