body {
  background-color: #eee;
}

.wrapper {
  width: 700px;
  margin: 0 auto;
  background-color: #fff;
  padding: 10px;
}

header, footer {
  background-color: ghostwhite;
  padding: 20px;
}

main {
  background-color: cornsilk;
  padding: 20px;
}

.layout-sidebar {
  display: grid;
  gap: 10px;
  grid-template-columns: 2fr 1fr;
}