.pgkb-grid img { display:block; width:100%; height:auto; }
.pgkb-archive .pgkb-search input[type="search"] { width:100%; max-width:480px; }
.pgkb-single details summary::marker { content: "▸ "; }
.pgkb-single details[open] summary::marker { content: "▾ "; }
.pgkb-related-list { margin: 0 0 1rem 1.2rem; }