* {
    margin: 0; padding: 0; border: 0;
    box-sizing: border-box;
}

/* ========== MOBILE STYLES AND BIGGER ======== */

body {
    background-color: rgb(205, 218, 205);
    color: #345;
    font-family: verdana;
}

.container {
    margin: 4px 8px;
}

.hero {
    min-height: 300px;
    background-color: #EEE;
    text-align: center;
}

.page-body {
    display: flex;
    flex-flow: row wrap;
}

.nav-primary {
    background-color: rgb(165, 68, 84);
    min-height: 70px;
    flex-grow: 1;
    flex-basis: 260px;
    display: flex;
    flex-flow: row wrap;
    justify-content: space-evenly;
    gap: 10px;
    padding: 20px 8px;
}

.nav-primary a {
    padding: 10px 25px;
    background-color: lightcyan;
    color: darkblue;
    text-decoration: none;
}

.dog {
    width: cover;
    height: 400px;
    background-image: url(../images/dog1.jpg);
    background-size: cover;
    background-position: center;
    margin: 10px;
}

.dog2 {
    width: cover;
    height: 400px;
    background-image: url(../images/dog2.jpg);
    background-size: cover;
    background-position: center;
    margin: 10px;
}

.dog3 {
    width: cover;
    height: 400px;
    background-image: url(../images/dog3.jpg);
    background-size: cover;
    background-position: center;
    margin: 10px;
}

.dog4 {
    width: cover;
    height: 400px;
    background-image: url(../images/dog4.jpg);
    background-size: cover;
    background-position: center;
    margin: 10px;
}

/* ========== LANDSCAPE TABLET AND BIGGER ======== */

@media screen and (min-width: 1020px) {

    .nav-primary {
        flex-grow: 0;
    }

    .dog {
        float: left;
        width: 400px;
        height: 400px;
        margin: 60px 110px;
    }

    .dog2 {
        float: right;
        width: 400px;
        height: 400px;
        margin: 60px 110px;
    }

    .dog3 {
        float: right;
        width: 400px;
        height: 400px;
        margin: 60px 110px;
    }

    .dog4 {
        float: right;
        width: 400px;
        height: 400px;
        margin: 60px 110px;
    }

}