body {
align-items: center;
display: flex;
flex-direction: column;
justify-content: center;
margin: 0;
min-height: 100vh;
}

.main {
flex: 1;
width: 1000px;
}

footer {
background-color: ;
padding: 10px;
text-align: ;
}

a {
  font-weight: bold;
  text-decoration: none;
}