.article-page .article-body h1,
.article-page .article-body h2,
.article-page .article-body h3,
.article-page .article-body h4,
.article-page .article-body h5,
.article-page .article-body h6 {
    margin: 1.6em 0 .7em;
    color: #152b3d;
    font-family: inherit;
    font-weight: 700;
    letter-spacing: 0;
    line-height: 1.55;
}

.article-page .article-body h1 { font-size: 32px; }
.article-page .article-body h2 { font-size: 28px; }
.article-page .article-body h3 { font-size: 24px; }
.article-page .article-body h4 { font-size: 21px; }
.article-page .article-body h5 { font-size: 19px; }
.article-page .article-body h6 { font-size: 17px; }

.article-page .article-body pre {
    max-width: 100%;
    overflow: auto;
    margin: 1.4em 0;
    padding: 16px 18px;
    border: 1px solid #d8e1e8;
    border-radius: 8px;
    background: #f4f7f9;
    color: #1d3346;
    font: 14px/1.7 Consolas, "Courier New", monospace;
    white-space: pre-wrap;
}

@media (max-width: 600px) {
    .article-page .article-body h1 { font-size: 27px; }
    .article-page .article-body h2 { font-size: 25px; }
    .article-page .article-body h3 { font-size: 22px; }
}