css grid-area names
.grid {
display: grid;
grid-gap: 20px;
grid-template-rows: [header-start] 20vh [header-end] ;
grid-template-columns: [sidebar-start] 1fr 2fr [sidebar-end] 1fr 2fr 1fr 2fr;
}
.header {
grid-row: header-start;
grid-column: 1 / -1;
}
.sidebar {
grid-row: 2;
grid-column: sidebar-start / sidebar-end;
}