h1:nth-of-type(1) {
    background-color: DodgerBlue; color: Tomato; border:2px solid black
}
p {
    background-color: Tomato; color: DodgerBlue;
}
h1:nth-of-type(2) {
    background-color: rgb(255, 99, 71);
}
h1:nth-of-type(3) {
    background-color: #ff6347;
}
h1:nth-of-type(4) {
    background-color: hsl(9, 100%, 64%);
}
h1:nth-of-type(5) {
    background-color: rgba(255, 99, 71, 0.5);
}
h1:nth-of-type(6) {
    background-color: hsla(9, 100%, 64%, 0.5);
}