bg视讯娱乐网站_bg视讯注册平台

bg视讯娱乐网站_bg视讯注册平台

Extra small devicesPhones (<768px)Small devicesTablets (≥768px)Medium devicesDesktops (≥992px)Large devicesDesktops (≥1200px)
Max container widthNone (auto)750px970px1170px
Class prefix.col-xs-.col-sm-.col-md-.col-lg-
# of columns12