class="bi x0 y0 w1 h1"
class="bi x1 y1 w2 h2"
class="bi x2 y2 w3 h3"
class="bi x3 y3 w4 h4"
class="bi x2 y4 w3 h5"
class="bi x1 y5 w2 h6"
class="bi x4 y6 w5 h7"
class="bi x5 y0 w6 h8"
class="bi x2 y2 w7 h9"
class="bi x5 y7 w8 h4"