* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: sans-serif;
}

body {
  background-color: #f9f9f9;
}

.grid-container {
  display: grid;
  grid-template-areas: 
    "header header"
    "main main"
    "footer footer";
  grid-template-columns:  1fr;
  grid-template-rows: 70px calc(100vh - 120px) 50px;
 
}


/* Sidebar */


/* Main content */


/* Footer */