body{
    width: 50%;
    align-content: flex-end;
    margin-left: auto;
    margin-right: auto;
    background-color: white;
}
.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}
.img {
  width: 20%;
}
nav li{
    display: inline-block;
    padding: 5px;
    color: red;
}
h2{
    background-color: cornflowerblue;
    color: white;
    text-align: center;
}
h4{
    color: red;
}