:root
{
    --font-title: 'Source Sans Pro', 'Segoe UI Emoji', sans-serif;
}

.cm-header-1.cm-header-1,
.markdown-preview-section.markdown-preview-section h1 {
    font-weight: 700;
    font-size: 30px;
}

.cm-formatting.cm-formatting-header {
    font-size: 1rem;
    font-family: var(--font-default);
    filter: brightness(1.5);
}

.cm-header-2,
.markdown-preview-section h2
{
    font-size: 24px;
}

.cm-header-3,
.markdown-preview-section h3
{
    font-size: 20px;
}

.cm-header-4,
.markdown-preview-section h4
{
    font-size: 18px;
}

.cm-header-5,
.markdown-preview-section h5
{
    font-size: 18px;
}

.cm-header-6,
.markdown-preview-section h6
{
    font-size: 18px;
}