body {
  display: block;
  margin: auto;
  width: 99%;
  text-align: center;
}

.column-1 {
  border: 3px solid red;
  display: inline-block;
  vertical-align: top;
  width: 40%;
  padding: 10px;
}

.column-2 {
  border: 3px solid blue;
  display: inline-block;
  vertical-align: top;
  width: 40%;
  padding: 10px;
}

header {
  background-color: pink;
}

h1 {
  color: red;
}

h2 {
  font-style: italic;
}

footer {
  margin-top: 20px;
}

header, footer {
  background-color: green;
}

.column-1 h2 {
  color: pink;
  }
  
 a:hover {
   color: green;
 }
Update CSS file to style HTML page for GPS 2-1
Update CSS file to style HTML page for GPS 2-1
