footer { display: none; }
.col-md-3 { flex: 0 0 12%; }
.bs-sidebar { display: none; }
blockquote { border: 1px solid black; padding: 0.5em 2em 0; }
.highlight { background: yellow; }
h1 { margin-top: 0.25em; margin-bottom: 0.75em; }
ins { background: springgreen;          padding: 0 0.25em; }
del { background: tomato; color: white; padding: 0 0.25em; }