body {
    font-family: serif;
}

h1,
h2,
h3 {
    font-family: sans-serif;
}

h1 {
    background-color: #def;
    padding: 10px;
    margin-left: 10px;
}

.h {
    background-color: #abc;
    padding: 10px;
    margin-left: 60px;
}

h3 {
    background-color: #789;
    padding: 10px;
    margin-left: 110px;
}

div {
    background-color: #ddd;
    padding: 20px;
    margin-left: 110px;
}

p {
    background-color: #eee;
    padding: 20px;
}

.pink {
    background-color: pink;
}