@charset "UTF-8";
body {
  background-color: gray;
}
 
#wrap {
  width: 960px;
  margin: auto;
  background-color: white;
}
 
header {
  padding: 40px;
  height: 80px;
}
 
nav {
  padding: 8px 40px;
  background-color: black;
  color: white;
}
 
main {
  padding: 40px;
  height : 400px;
}
main ul {
    list-style-type: square;
  }
  main ol {
    list-style-type: upper-roman;
  }
footer {
  padding: 40px;
  height: 40px;
  background-color : black;
  color: white;
}