/* 35em is also 560px when basefont is 16px */
@media only screen and (min-width: 35rem) {

    header img {
        width: 150px;
        height: auto;
    }
    .h2main {
        text-align: center;
    }
    nav {
        background-color: #536878;
        font-family: Verdana, Geneva, Tahoma, sans-serif;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    header {
        background-color: #808080;
    }
}