class="bi x0 y0 w1 h1"
class="bi x1 y1 w2 h2"
class="bi x1 y2 w2 h3"
class="bi x1 y1 w2 h2"
class="bi x1 y2 w2 h3"
class="bi x1 y3 w2 h4"
class="bi x1 y1 w2 h5"
class="bi x1 y1 w2 h2"
class="bi x1 y1 w2 h2"
class="bi x2 y2 w3 h3"
class="bi x2 y3 w3 h4"
class="bi x2 y4 w3 h6"
class="bi x2 y5 w3 h7"
class="bi x2 y2 w3 h3"
class="bi x2 y3 w3 h4"