Mobile hidden Ctr
m-harea:
改行タグがモバイルなし、PC（desktops, 992px and up）あり
m-darea:
改行タグがモバイルあり、PC（desktops, 992px and up）なし
Box design
Title
b-d01 Desc
Title
b-d02 Desc
Title
b-d03 Desc
Title
b-d11 Desc
Title
b-d12 Desc
Title
b-d13 Desc
Title
b-d21 Desc
flex Box
Design01 ltfb01
1
2
3
Design02 ltfb02
1
2
3
Design03 ltfb03 Card design
Design04 ltfb04 Card design (Flip)
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