#header {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 30%;
}


h1 {
color: black;
font-family: arial, sans-serif;
font-size: 40px;
font-weight: bold;
margin-top: 70px;
text-align: center;
}

h2 {
color: black;
font-family: arial, sans-serif;
font-size: 20px;
font-weight: bold;
margin-top: 70px;
text-align: center;
}