dashboard css

.Layout{
    height: 100vh;
    display: grid;
    grid-template-columns: 300px 1fr;
    grid-template-rows: 60px 1fr;
}
.header{
    background-color: #fff;
    grid-column: 1 / 3;
    grid-row: 1 / 2;

}
.sidebar{
    background-color: #0018A8;
    grid-column: 1 / 2;
    grid-row: 2 / 3;
}
.main{
    background-color: #c3c5ca;
    grid-column: 2 / 3;
    grid-row: 2 /3;
}
.main-header{
    grid-column: 1 / 2;
    grid-row: 1 / 3;
    background-color: aqua;
}
.main-content{
    grid-row: 2 / 3;
    grid-column:  2/ 3;
}