css grid justify content code example

Example 1: justify content vs justify items grid

The justify-content and align-content properties align the grid.

The justify-self, justify-items, align-self and align-items properties align the grid items.

Example 2: css grid

.item-a {
  grid-area: header;
}
.item-b {
  grid-area: main;
}
.item-c {
  grid-area: sidebar;
}
.item-d {
  grid-area: footer;
}

.container {
  display: grid;
  grid-template-columns: 50px 50px 50px 50px;
  grid-template-rows: auto;
  grid-template-areas: 
    "header header header header"
    "main main . sidebar"
    "footer footer footer footer";
}