body {
  background: darkslategray;
  color: white;
  font-family: "Trebuchet MS",Arial;
  margin: 0px;
  padding: 0px;
} h1 {
  color: orange;
} h2 {
  color: lightblue;
} a {
  color: orange;
} div {
  background: lightblue;
  margin: auto;
   width: 30%;
  color: black;
} ul {
  margin: 0;
  padding: 0;
  list-style-type: none;
} li {
  display: inline-block;
  margin-right: 20px;
} header {
  background: black;
  padding: 10px;
} section {
  background: teal;
  padding: 20px;
  display: flex;
  flex-direction: row;
} footer {
  background: black;
  padding: 15px, 25px;
} button {
  background: rgb(30,30,30);
  color: orange;
}