settings
code:style.css
.level-1 img { width: 16.7%; max-height: none; }
.level-2 img { width: 33.3%; max-height: none; }
.level-3 img { width: 50%; max-height: none; }
.level-4 img { width: 66.7%; max-height: none; }
.level-5 img { width: 83.3%; max-height: none; }
.level-6 img { width: 100%; max-height: none; }