class="bi x0 y0 w1 h1"
class="bi x0 y0 w2 h1"
class="bi x0 y1 w1 h2"
class="bi x0 y1 w1 h3"
class="bi x0 y2 w1 h4"
class="bi x0 y3 w2 h4"
class="bi x0 y1 w2 h2"
class="bi x0 y2 w1 h4"
class="bi x0 y0 w1 h1"