header,
    footer {
        margin: 0.2em;
        padding: 0.5em;
        background-color: #D2691E;
        text-align: center;
    }
    
    .row {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        justify-content: space-between;
    }
    
    nav {
        margin: 0.2em;
        min-height: 8em;
        padding: 0.5em;
        width: 10%;
        background-color: lightgreen;
        text-align: center;
    }
    
    .column {
        margin: 0.2em;
        min-height: 8em;
        padding: 1em;
        width: 65%;
        background-color: #9df5d7;
    }
    
    aside {
        margin: 0.2em;
        min-height: 8em;
        padding: 1em;
        width: 20%;
        background-color: lightBlue;
    }
    
    a {
        text-decoration: none;
    }
    
    a:hover {
        color: red;
    }