The default grid system provided in Bootstrap utilizes 12 columns that render out at widths of 724px, 940px (default without responsive CSS included), and 1170px. Below 767px viewports, the columns become fluid and stack vertically.
别小看“僵尸股”中的小规模公司，它们爆发起来很惊人 。 本文由@佳人如梦原创发布于人人都是产品经理。