body {
    counter-reset: h4counter;
}
h1 {
    counter-reset: h4counter;
}
h2 {
    counter-reset: h4counter;
}
h3 {
    counter-reset: h4counter;
    font-size: 1.5em;
}
h4:before {
    content: counter(h4counter) ".\0000a0\0000a0";
    counter-increment: h4counter;
}
h4 {
    font-weight: normal;
    font-size: 1.0em;
}