#about-button{display:inline-flex;align-items:center;justify-content:center;gap:5px;box-sizing:border-box;min-height:30px;padding:4px 8px;background:#c0c0c0;color:#111;border:2px solid;border-color:#fff #404040 #404040 #fff;box-shadow:inset -1px -1px #808080,inset 1px 1px #dfdfdf;border-radius:0;font:700 14px/1 Arial,sans-serif;white-space:nowrap;text-decoration:none;cursor:pointer}
#about-button:active{border-color:#404040 #fff #fff #404040;box-shadow:inset 1px 1px #808080}
#about-button .start-icon{display:block;flex:0 0 18px;width:18px;height:18px;object-fit:contain;image-rendering:pixelated}
#about-button:focus-visible{outline:2px solid #8b78b5;outline-offset:3px}