.container{
    width: 100%;
    height: 100vh;
    display: grid;
    grid-template-columns: [first] 20% [second] auto [third];
    grid-template-rows: [first] 15vh [second] 12vh [third] auto [fourth] 15vh [fifth];
}

.header{
    background-color: orange;
    grid-column-start: first;
    grid-column-end: third;
    grid-row-start: first;
    grid-row-end: second;
}

.link{
    color: red;
}

.navbar{
    background-color: orange;
    grid-column-start: first;
    grid-column-end: third;
    grid-row-start: second;
    grid-row-end: third;
}

.aside{
    background-color: blue;
    grid-column-start: first;
    grid-column-end: second;
    grid-row-start: third;
    grid-row-end: fourth;
}

.main{
    background-color: blue;
    grid-column-start: second;
    grid-column-end: third;
    grid-row-start: third;
    grid-row-end: fourth;
}

.footer{
    background-color: blue;
    grid-column-start: first;
    grid-column-end: third;
    grid-row-start: fourth;
    grid-row-end: fifth;
}