.md-h1 {
    font-size: 2.0em;
    margin-top: 2.0em;
    margin-bottom: 0.5em;
    font-weight: bold;
    line-height: 1.2;
}

.md-h2 {
    font-size: 1.8em;
    margin-top: 1.8em;
    margin-bottom: 0.5em;
    font-weight: bold;
    line-height: 1.2;
}

.md-h3 {
    font-size: 1.6em;
    margin-top: 1.6em;
    margin-bottom: 0.5em;
    font-weight: bold;
    line-height: 1.2;
}

.md-h4 {
    font-size: 1.4em;
    margin-top: 1.4em;
    margin-bottom: 0.5em;
    font-weight: bold;
    line-height: 1.2;
}

.md-bi {
    font-style: italic;
    font-weight: bold;
}

.md-b {
    font-weight: bold;
}

.md-i {
    font-style: italic;
}

.md-s {
    text-decoration: line-through;
}

.md-code {
    font-family: monospace;
    font-size: 0.9em;
    background-color: #f8f9fa;
    padding: 0.2em 0.4em;
    border-radius: 0.2em;
    color: #333;
}

.md-a {
    color: #007bff;
    text-decoration: underline;
}