class="bi x0 y0 w1 h1"
class="bi x1 y1 w2 h2"
class="bi x0 y1 w3 h2"
class="bi x2 y0 w4 h1"
class="bi x0 y1 w5 h2"
class="bi x3 y1 w6 h2"
class="bi x4 y2 w7 h3"