* {
    margin: 0;
    padding: 0;
    border: 0;
    box-sizing: border-box;
}
/* mobile styles and bigger */
body {
    background-color: lightblue;
    color: black;
    font-family: verdana;
}
.container {
    margin: 4px 8px;
}
.page-body {
        display: flex;
        flex-flow: row wrap;
}
.container > header {
    background-color: blue;
    min-height: 80px;
    color: yellow;
    text-align: center;
}
nav {
    background-color: orange;
    min-height: 70px;
    flex-basis: 300px;
    flex-grow: 1;
    display: flex;
    flex-flow: row wrap;
    justify-content: space-evenly;
    gap: 10px;
}
nav a {
    padding: 8px 12px;
    background-color: lightgoldenrodyellow;
    color: black;
    text-decoration: none;
    padding: 10px 8px;
}
nav .desktop {
    border: 4px solid black;
    display: none;
}
nav .phone {
    border: 4px solid red;
    display: inline;
}
article {
    background-color: white;
    flex-basis: auto;
    flex-grow: 1;
}
article > header {
    background-color: green;
    min-height: 60px;
    margin: 8px;
    color: white;
}
.art-hero {
    background-color: yellow;
    min-height: 200px;
    margin: 8px;
    background-image: url(/cis195/images/forest4.jpg);
    background-size: cover;
    background-position: center;
    aspect-ratio: 2/1;
}
article > p {
    font-size: 1.2em;
    line-height: 1.4;
    margin: .2em 8px .1em 8px;
}
article footer {
    background-color: red;
    color: darkgreen;
    min-height: 60px;
}
/* landscape tablet and bigger */
@media screen and (min-width: 1020px) {
    nav {
        flex-grow: 0;
    }
    article {
        flex-basis: 400px;
    }
    article > header {
        margin: 0px;
    }
    .container > header {
        text-align: left;
    }
    .art-hero {
        margin: 16px;
        width: 260px;
        aspect-ratio: 1;
        float: left;
    }
    article > p:nth-of-type(1)::first-letter {
        display: block;
        color: darkred;
        font-size: 3em;
        padding-right: 8px;
    }
    nav .desktop {
        display: inline;
    }
}