#main { background: #fff;  }
#main h2 { text-align: left }

hr { margin-top: 20px; }

pre { text-align: left; overflow: visible }
code { background-color: #ffc }
pre code { background-color: #eee }

.pics { height: 300px; width: 300px; padding:0; margin:0; overflow: hidden }
.pics img { height: 300px; width: 300px; border: 1px solid #ccc; background-color: #eee; top:0; left:0 }