body {
  background-image: url("images/pinkblanket.png");
  background-repeat: repeat;
}

.container {
  max-width: 80%;
  display: grid;
  margin-left: auto;
  margin-right: auto;
  grid-template-columns: 1fr 3fr 1fr; 
  grid-template-rows: auto 1fr;
  grid-template-areas: "header header header" "left-sidebar main right-sidebar";
  gap: 20px;
  padding: 20px;
}

.header {
  grid-area: header;
  background-color: #d5f2fe
}

.left-sidebar {
  grid-area: left-sidebar;
 background-color: white; 
}

.main {
  grid-area: main;
  background-color: purple;
}

.right-sidebar {
   grid-area: right-sidebar;
 background-color: green; 
}