*{
    --air-background:#fff;
    font-family: sans-serif;
}
body{
    padding: 0px;
    margin: 0px;
}
@media screen and (max-width: 50em){
    main{
        height: 100vh;
        display:grid;
        grid-template-rows: 1fr 8fr 0.5fr;
        grid-template-columns: 1fr 4fr;
        grid-template-areas: 
        "header header"
        "article article"
        "nav nav"
        "footer footer"
        
    }
    a{
        display:inline;
    }

}

@media screen and (min-width: 50em){
    main{
        height: 100vh;
        display:grid;
        grid-template-rows: 1fr 8fr 0.5fr;
        grid-template-columns: 1fr 4fr;
        grid-template-areas: 
        "header header"
        "nav article"
        "footer footer"
        
    }
    a{
        display:block;
    }

}


header{
    grid-area: header;
    background:#202124;
    font-family: sans-serif;
    box-shadow: 0 2px 4px rgba(0,0,0,.5);
    margin-bottom: 0.3em;
}

header > h2{
    color: #80868b;
}
air-crumb, total-view{
    color: #fafafa;
}

header > section{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
nav{
    grid-area: nav;
    background:var(--air-background,#fff);
}
article{
    grid-area: article;
    background:var(--air-background,#fff);
}

footer{
    grid-area: footer;
    background:var(--air-background,#fff);
}
a{
    text-decoration: none;
}


.a-link{
    text-decoration: underline;
    padding: 1em;
}

.active-link{
    background: lightpink;
}

air-crumb,total-view{
    font-size: 0.8em;
}
small{
    font-size: 0.5em;
}

img{
    width: 80%;
    height: auto;
}