class="bi x1 y1 w1 h1"
class="bi x1 y2 w3 h2"
class="bi x2 y3 w5 h3"
class="bi x3 y3 w5 h4"
class="bi x4 y1 w6 h5"
class="bi x5 y4 w7 h6"
class="bi x4 y5 w7 h7"
class="bi x6 y4 w8 h8"
class="bi x5 y4 w9 h9"
class="bi x3 y4 w8 h8"
class="bi x4 y5 wa ha"
class="bi x7 y4 wb hb"
class="bi x8 y4 wb h8"
class="bi x4 y3 w5 hc"
class="bi x2 y4 w6 hb"
class="bi x5 y6 w6 hd"
class="bi x8 y7 wd he"