body {
    display: grid;
    grid-template-rows: 0.3fr 2.4fr 0.3fr;
    grid-template-areas: 
    "ldb-header"
    "ldb-main"
    "ldb-footer"
    ;
}

#header {
    grid-area: ldb-header;
}

#main {
    grid-area: ldb-main;

    display: grid;
    grid-template-rows: auto;
    grid-template-columns: 1.2fr 0.8fr;
}

#footer {
    grid-area: ldb-footer;
}

#leftArea {
    display: grid;
    grid-template-rows: auto;
    grid-template-columns: 0.2fr 1.8fr;
}

#rightArea {
    display: grid;
    grid-template-rows: 1fr 1fr;
    grid-template-columns: auto;
}