body {
  background-color: slateblue;
  color: white;
  font-family: "Trebuchet MS", sans-serif;
  text-align: center;
  margin: 0;
  padding: 20px;
}

img {
  border-radius: 75px;
  border: 4px solid white;
  width: 150px;
  height: 150px;
  object-fit: cover;
  box-shadow: 0 0 15px #00000050;
  margin-top: 20px;
}

h1 {
  margin-top: 10px;
  font-size: 2.5rem;
}

h2 {
  font-size: 24px;
  margin: 10px 0 20px;
}

a {
  background-color: white;
  font-size: 20px;
  border-radius: 10px;
  padding: 10px 20px;
  display: inline-block;
  margin: 20px auto;
  color: slateblue;
  text-decoration: none;
  transition:
    background-color 0.3s,
    color 0.3s;
}
a:hover {
  background-color: #DDD;
  color: darkslateblue;
}
.dark-mode {
  background-color: #111;
  color: #FFF;
}

.dark-mode a {
  background-color: #333;
  color: gold;
}

.dark-mode a:hover {
  background-color: #555;
  color: #FFF;
}