class="bi x1 y1 w2 h1"
class="bi x2 y2 w3 h2"
class="bi x3 y2 w4 h3"
class="bi x0 y0 w6 h0"
class="bi x3 y3 w7 h2"
class="bi x2 y2 w8 h4"
class="bi x4 y4 w9 h5"