* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-color: brown;
}

.top {
  width: 100%;
  position: fixed;
  background-color: #000;
  color: #fff;
  text-align: center;
  padding: 5px;
}

.image-container {
  margin-top: 60px;
  text-align: center;
}

.image-container img {
  margin: 10px;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  background-color: lightgrey;
  width: 300px;
  height: 300px;
}

.btn {
  background-color: slateblue;
  border: none;
  padding: 10px 20px;
  margin: 20px;
  color: white;
  border-radius: 5px;
  box-shadow: 0, 4px, 8px, rgba(0, 0, 0, 0.3);
  cursor: pointer;
}

.btn:hover {
  opacity: 0.9;
}