class="bi x0 y0 w1 h1"
class="bi x0 y1 w1 h2"
class="bi x1 y1 w2 h3"
class="bi x1 y2 w3 h4"
class="bi x1 y1 w4 h2"
class="bi x1 y3 w4 h1"
class="bi x1 y0 w5 h1"
class="bi x1 y4 w4 h5"
class="bi x1 y5 w5 h6"
class="bi x1 y6 w5 h2"
class="bi x1 y7 w5 h7"
class="bi x1 y8 w4 h8"
class="bi x1 y3 w5 h1"
class="bi x1 y9 w6 h9"