body > *:nth-child(2n+1) {
    background-color: pink;
    font-family: Verdana, "DejaVu Sans", sans-serif;
}

body > *:nth-child(2) {
    color: blue;
    font-size: 36px;
}

body > *:nth-child(3) {
    font-size: 24px;
}

body > *:nth-child(4) {
    font-size: 24px;
    background-color: lightgreen;
    font-weight: bold;
}