class="bi x0 y0 w1 h1"
class="bi x1 y1 w2 h2"
class="bi x0 y0 w3 h1"
class="bi x1 y1 w4 h3"
class="bi x0 y1 w3 h4"
class="bi x0 y1 w1 h2"
class="bi x0 y1 w3 h4"
class="bi x0 y0 w1 h1"
class="bi x0 y1 w5 h5"
class="bi x1 y1 w2 h2"