.post-content h1 {
    font-size: 25px;
    color: black;
}

.post-content h2 {
    font-size: 22px;
    color: black;
}

.post-content h3 {
    font-size: 20px;
    color: black;
}

.post-content h4 {
    font-size: 17px;
    color: black;
}

.post-content h5 {
    font-size: 15px;
    color: black;
}

.post-content code {
    background-color: #DDD;
    font-size: 14px;
    padding: 1px 3px 1px 3px;
    border-radius: 3px;
}