* {
  margin: 0;
  font-size: 17px;
  font-family: system-ui;
}
a {
  text-decoration: none;
  color: white;
}
a:hover {
  transition-duration: 0.25s;
  background-color: #0052d9;
}
footer {
  text-align: center;
  position: fixed;
  bottom: 0px;
  width: 100%;
  background-color: black;
  color: white;
  padding: 20px;
}
footer a {
  margin: 10px; 
}
footer div {
  margin-right: 10vw;
}