class="bi x0 y0 w1 h1"
class="bi x1 y1 w2 h2"
class="bi x1 y2 w3 h3"
class="bi x0 y1 w4 h4"
class="bi x1 y2 w2 h5"
class="bi x1 y1 w2 h3"
class="bi x1 y2 w2 h3"
class="bi x1 y1 w2 h6"
class="bi x1 y2 w5 h3"
class="bi x1 y1 w5 h3"
class="bi x1 y2 w2 h7"
class="bi x1 y1 w2 h7"
class="bi x1 y2 w2 h6"
class="bi x1 y1 w2 h3"
class="bi x1 y2 w2 h7"
class="bi x1 y1 w2 h8"
class="bi x2 y2 w6 h7"
class="bi x2 y1 w6 h3"
class="bi x1 y2 w2 h7"
class="bi x1 y1 w2 h3"
class="bi x3 y2 w7 h7"
class="bi x1 y1 w2 h3"
class="bi x1 y2 w2 h7"
class="bi x2 y1 w8 h3"
class="bi x0 y2 w4 h7"

Trích đoạn H78ng d9n h+c sinh luy=n 01c bài 3ng d5ng Cách ti.n hành B!"c 1:

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