style.css

body {
  margin: 0;
  font-family: "Fira Code";
  background-color: #eeedde;
}

header {
  display: grid;
  height: 100px;
  background: #203239;
  justify-content: center;
}

header ul {
  padding: 0;
  list-style: none;
}

header ul li {
  display: inline-block;
}

header ul li button {
  border: none;
  background-color: rgba(255, 255, 255, 0.1);
  padding: 20px 50px;
  color: white;
  font-family: "Fira Code";
  font-size: 16px;
  font-weight: bold;
  text-decoration: none;
}

main {
  display: grid;
  justify-content: center;
}

#wrapper {
  display: flex;
  flex-direction: row;
  background-color: #f7f7e7;
  height: 400px;
  width: 1000px;
  border-radius: 10px;
  margin: auto;
  margin-top: 10px;
  align-items: flex-end;
}

.array {
  background-color: #141e27;
}

.slide-container {
  display: grid;
  justify-content: center;
}

#slider {
  width: 200px;
}