body {
    background-color: #F5F5F5;
    font-family: Arial, sans-serif;
}

h1 {
  text-align: center;
  background-color: blue;
  color: white;
  padding: 10px;
  border-radius: 10px;
}


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

li {
    margin-bottom: 10px;
    padding: 10px;
    background-color: #FFFFFF;
    box-shadow: 0px 0px 5px #888888;
}

a {
    color: #000000;
    text-decoration: none;
}
button {
  background-color: blue;
  color: white;
  padding: 10px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  margin-right: 10px;
}

button:hover {
  background-color: darkblue;
}

#header {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: blue;
  color: white;
  height: 80px;
}

#page1-btn, #page2-btn {
  margin-left: 20px;
}

h1 {
  margin: 0;
}


button:focus {
  outline: none;
}

#page1-btn, #page2-btn {
  text-align: center;
}